WRKLOG-2026-06-18

Summary

Thursday. Marathon session — 7 AM to 9 PM. SIEM pipeline v3 architecture designed, SaaS pipeline deployed, Abnormal Security CR drafted for CAB, TCP clock triaged, ISE message catalog classified (29 categories).

URGENT - All Domains

Carryover Backlog (CRITICAL)

Task Details Origin Days Status

MSCHAPv2 Migration Report

Report due. 6-sheet Standard Report (exec summary, trend, waves, device detail, stale, policy match). Sheet 6 added 05-14: policy match by protocol for removal planning + anonymous identity validation. Migration window 2026-05-04 to 2026-05-30. ~6,227 devices, 5 waves.

2026-04-17

83

P0 - DUE — run report this week

Abnormal Security — ✅ COMPLETE

CR-2026-05-07-abnormal-read-write. CAB approved 2026-05-12. Implemented successfully 2026-05-13. Read/write enabled for pilot group. Post-deployment validation pending.

2026-05-07

63

✅ IMPLEMENTED — post-validation pending

SIEM QRadar → Sentinel Migration

Lead role. Monad console error RESOLVED 2026-05-12 — secrets configured in CHLA production tenant. ISE secure syslog integration in progress — cert imported, remote logging target configured, streaming errors under investigation. Blocking: DCR not created (Rule ID + Stream Name). Azure private network policy unresolved. Victor + Mauricio action.

2026-04-10

90

P0 - ACTIVE — ISE syslog + DCR blocking

Monad Pipeline Evaluation

Sentinel output connector. Console error resolved. 3 of 6 values configured. Remaining: Endpoint URL (have it), Rule ID + Stream Name (need DCR). ISE Remote Logging Target configured 2026-05-18 — TLS cert imported, secure syslog target created. Streaming errors in Monad console under investigation.

2026-03-11

120

P0 - ACTIVE — ISE integration in progress

Guest Redirect ACL

Guest redirect ACL work needed. Related to Mandiant remediation findings.

2026-05-12

58

P0 - TODO

ISE Patch 10 (CVE-2026-20147 CVSS 9.9)

ISE 3.2 Patch 10. Supersedes Patch 9. 61 days on a CVSS 9.9 — schedule maintenance window. Write CR if needed.

2026-03-12

119

P0 - OVERDUE — schedule immediately

k3s NAT verification

NAT rule 170 for 10.42.0.0/16 pod network - test internet connectivity. 64 days — test this week or defer to Q3.

2026-03-09

122

P0 - BLOCKING — TRIAGE: schedule or defer

Wazuh indexer recovery

Restart pod after NAT confirmed working - SIEM visibility blocked. Blocked by k3s NAT — cannot proceed until above resolved.

2026-03-09

122

P0 - Blocked by k3s

Strongline Gateway VLAN fix

8 devices in wrong identity group (David Rukiza assigned)

2026-03-16

115

P0 - TODO

TCP Clocks deployment

ISE identity group validation, query outputs, comms with team. Active d001 data Apr 22-23.

2026-04-22

78

P0 - ACTIVE

IoT Dr. Kim — recurring

Sleep study devices (Apr 15-16), watches recurrence (Apr 22). 5 incident versions in d001. Validate iPSK enrollment.

2026-04-15

85

P0 - RECURRING

Murus Portae (WAF) — Phase 0

FMC cert expired, ACP returns zero rules. d001: zone map, architecture D2, FMC API reference, ops script.

2026-04-16

84

P0 - INVESTIGATING

Vocera EAP-TLS Supplicant Fix

~10 phones failing 802.1X, missing supplicant config. 61 days — schedule with clinical engineering team.

2026-03-12

119

P1 - TODO — schedule

ISE MnT Messaging Service

Enable "Use ISE Messaging Service for UDP syslogs delivery". 61 days — low risk, schedule with ISE Patch 10 maintenance window.

2026-03-12

119

P2 - BUNDLE with Patch 10

Professional backlog remains critical. Check Days column for priorities.

BLOCKERS — Fix Immediately

Task Details Origin Days Impact

Z Fold 7 Termux

gopass and SSH not working

2026-03-10

58

BLOCKER — Cannot access passwords on mobile

gopass v3 organization

Inconsistent structure, poor key-value usage

2026-03-20

48

Inefficient password management, no aggregation

Git history scrub — sensitive personal terms

Plaintext references to personal legal matters in committed worklogs (WRKLOG-2026-03-14, WRKLOG-2026-04-18). Forward-fixed but old commits still contain strings. Requires git filter-repo + force-push. See runbook below.

2026-04-22

15

SECURITY — sensitive terms in public git history

Runbook: Git History Scrub (d000 Personal Terms)

Problem: Two committed worklogs contained plaintext references to personal legal matters. The files have been edited (forward-fix), but git history retains the original text in prior commits.

Affected commits: Any commit touching these files:

# Identify affected commits
git log --oneline -- \
  docs/modules/ROOT/pages/2026/03/WRKLOG-2026-03-14.adoc \
  docs/modules/ROOT/pages/2026/04/WRKLOG-2026-04-18.adoc

Scrub procedure:

# 1. BEFORE: Full backup of the repo
cp -a ~/atelier/_bibliotheca/domus-captures ~/atelier/_bibliotheca/domus-captures.bak

# 2. Install git-filter-repo (if not present)
# Arch: pacman -S git-filter-repo
# pip: pip install git-filter-repo

# 3. Create expressions file for replacement
cat > /tmp/scrub-expressions.txt << 'EXPR'
regex:(?i)divorce==[REDACTED]
regex:(?i)dissolutio(?!n\.adoc\.age)==[REDACTED-LEGAL]
regex:(?i)iliana==[REDACTED-NAME]
regex:(?i)angulo-arreola==[REDACTED-NAME]
regex:legal-divorce-notes\.age==legal-notes.age
regex:1099-NEC-iliana==1099-NEC
EXPR

# 4. Verify before (dry run — count matches in history)
git log -p --all -S 'divorce' -- '*.adoc' | grep -c 'divorce' || echo "0 matches"
git log -p --all -S 'iliana' -- '*.adoc' | grep -c 'iliana' || echo "0 matches"

# 5. Run filter-repo (DESTRUCTIVE — rewrites all commit hashes)
git filter-repo --replace-text /tmp/scrub-expressions.txt --force

# 6. Verify after
git log -p --all -S 'divorce' -- '*.adoc' | grep -c 'divorce' || echo "0 matches — CLEAN"
git log -p --all -S 'iliana' -- '*.adoc' | grep -c 'iliana' || echo "0 matches — CLEAN"

# 7. Re-add remotes (filter-repo removes them)
git remote add origin git@github.com:<user>/domus-captures.git
# Add any other remotes (Gitea, etc.)

# 8. Force-push to all remotes (DESTRUCTIVE — overwrites remote history)
git remote | xargs -I{} git push {} main --force

# 9. Clean up
rm /tmp/scrub-expressions.txt
rm -rf ~/atelier/_bibliotheca/domus-captures.bak  # only after verifying

Post-scrub checklist:

  • Backup created before running

  • git filter-repo installed

  • Expressions file reviewed — no false positives (e.g., Don Quijote "Angulo el Malo" is in segunda-parte/texto/texto-011.adoc — the regex targets angulo-arreola specifically to avoid this)

  • Dry-run counts match expectations

  • Filter-repo executed

  • Post-scrub verification shows 0 matches

  • Remotes re-added

  • Force-pushed to all remotes

  • Cloudflare Pages rebuild verified

  • Local clones on other machines re-cloned or git fetch --all && git reset --hard origin/main

  • Backup removed

URGENT - Requires Immediate Action

Item Details Deadline Status Impact

Housing Search

Granada Hills area - apartments/rooms

TBD

In Progress

Quality of life, commute

2025 Tax — IRS Transcript Review

MFJ filed 2026-04-22. Pull IRS Return Transcript to verify contents. Consult attorney re: Form 8857 (Innocent Spouse Relief). Details in encrypted case file.

Before attorney meeting

In Progress

Financial — liability exposure. See encrypted D000 case file.

Rack Relocation

Physical move of server rack. CR written: CR-2026-04-18 (pending in infra-ops). Borg backup completed. VM XML dumps, switch save, shutdown/startup procedure documented.

TBD

Pending

Infrastructure downtime — all services offline during move

D000 Legal Planning

Encrypted D000 case file. Open: d000 open dissolutio. Close: d000 close dissolutio. 19 partials + assembler. PDF build for attorney handoff. Critical deadline: Jan 2029.

Before Jan 2029

Active — escalating

Life transition — see case file for details

Credit Report Review

Pull reports from all 3 bureaus via annualcreditreport.com. Verify no unknown joint accounts or debts. Credentials in gopass: v3/personal/finance/credit/annual_credit_report

TBD

In Progress

Financial discovery — FL-142 preparation

Gopass Security Audit

Rotate passwords on shared/known accounts. Add 2FA backup codes to v3/personal/recovery/. Create missing government entries (IRS, SSA, VA, DMV). Add last_login field to active entries.

TBD

Pending

Digital security — pre-filing preparation

Subscription Audit

Download 3 months bank/CC statements (Chase, NFCU, USAA). Identify all recurring charges. Cancel unnecessary. Document active subscriptions for FL-150.

TBD

Pending

Financial — expense documentation

401(k) Enrollment

Enroll in CHLA 401(k) immediately. Post-separation contributions are 100% separate property. Reduces gross income for support calculations. Max 2026: $23,500/yr.

In progress (started 5/4)

In Progress

Financial — support calculation + retirement

URGENT — Performance Review Certifications

Certification Provider Deadline Status Impact

CISSP

ISC² — Certified Information Systems Security Professional

July 12, 2026

ACTIVE — Week 2 of 10 (Project)

Required for performance review. 10-week accelerated plan.

RHCSA 9

Red Hat Certified System Administrator

Q3 2026

ACTIVE — 21-phase curriculum (Project)

After CISSP. Required for performance review.

CISSP: 41 days remaining (exam July 12). Domain 1 study in progress. Schedule exam today (06-01).

Early Morning - 5:30am

Regex Training (CRITICAL CARRYOVER)

  • Session 3 - Character classes, word boundaries

  • Practice drills from regex-mastery curriculum

  • Status: 52 days carried over (since 2026-03-16) — CRITICAL

Regex training continues to slip. This is the foundation for all CLI mastery.

Daily Notes

Triage Status

Item Status Destination

Annual review — submit to Sarah TODAY

urgent

d000 cursus — self-eval-draft-2026.adoc → paste into xlsx

EAP-TEAP Linux test — systems engineer request

urgent

daily notes — eap-teap-test.adoc

SIEM pipeline presentation — show enriched switch output

active

d001 siem-qradar-to-sentinel

TCP clocks — Medigate attribute push follow-up

waiting

d001 tcp-clocks

Abnormal Security — Exchange policy verification

pending

d001 abnormal

CISSP — no early session today

deferred

Rescheduled Aug 2026

Quijote cap XXXIX

evening

daily notes — quijote-lectura.adoc

Urgent

Annual Review — Submit Today

  • Draft complete: data/d000/cursus/annual-review/chla/2025/self-eval-draft-2026.adoc

  • 3 [REVIEW] items to confirm before pasting into xlsx

  • Xlsx: data/d000/cursus/annual-review/chla/2025/my-annual-review.xlsx

EAP-TEAP Linux Testing

Manager from systems engineering wants testing. Capture results here.

Test environment
  • ISE version:

  • Switch:

  • Linux client:

  • Auth method: EAP-TEAP

Session Work

SIEM Pipeline — Monad / DCR / Cribl

Pipeline operations — chlxsyslog-pipeline (17 nodes, 16 edges, Running):

  • Renamed 5 outputs via v2 API — discovered output_type field (not type). Former "constraint #10" was a field-name mismatch.

  • Renamed 3 node slugs — slugs ARE mutable via pipeline PATCH (metadata-only bypasses billing validator)

  • Bulk renamed 8 edges in single PATCH

  • Pipeline graph audit — full node→output mapping, per-node throughput analysis

  • ASA VPN + ACL routing fix blocked by billing tier (3 transform / 3 output limit)

  • Sentinel pricing confirmed: $4.30/GB pay-as-you-go

Pipeline operations — saas-pipeline (new, 5 nodes, 4 edges, Running):

  • Created second pipeline for SaaS sources (Carlos request) — Mind DLP via monad-http

  • Created dlp-event-extract transform (8 operations: source_type, facility, environment, pipeline_version, severity_tier, compliance_scope, data_classification, retention_tier)

  • Created dlp-cold-extract transform (5 operations: cold storage enrichment)

  • Created hot-sentinel-dlp output

  • Built hot/cold tier architecture: input-dlp → dlp-extract → dlp-hot-sink + dlp-cold-extract → dlp-cold-sink

API discoveries from OpenAPI schema:

  • 20 transform operations (not 3): jq, rename_key, drop_record_where_value_eq, mutate_value_where_key_eq, encrypt, mask, convert_timestamp, etc.

  • v2 output PATCH requires output_type on every mutation — even name-only changes

  • Node slugs mutable via pipeline PATCH

  • New pipeline POST bypasses billing limits — only PATCH on existing >3/3 pipelines is blocked

Input cleanup:

  • Deleted 4 stale inputs: cisco-asa-vpn-lab, fmc-syslog-workaround, ise-lab, okta-system-logs

  • Remaining: CHLXSYSLOG01 (monad-syslog) + mind-dlp (monad-http)

v3 pipeline designed (blocked by billing limit — email Kenneth):

  • ISE three-tier routing on app-name — hostname-independent (works for ppan, span, pmnt, smnt, psn-*)

  • 29 ISE categories classified from MessageCatalog.csv: 8 hot, 9 cold, 10 discarded

  • ISE duplication eliminated — auth/accounting no longer share same condition

  • Switch exclusion added to catch-all NOR

  • ASA VPN + ACL → hot-sentinel-perimeter (fixed routing)

  • 18 nodes, 17 edges — all component IDs real, payload validated

  • ise-cold-extract transform created (7 operations)

  • general-extract transform created (5 operations — shared Windows/ASA/switch enrichment)

  • Session docs: session-2026-06-18-v3.adoc + session-2026-06-18-v3-deploy.adoc

Deviation tested and closed:

  • Tested pipeline-per-source architecture — shared inputs do NOT work (constraint #12: inputs exclusive to one pipeline)

  • Documented in deviation-pipeline-per-source.adoc

Constraint list updated to 12:

  • #10: v2 output API uses output_type (not type)

  • #11: Node slugs ARE mutable

  • #12: Input components exclusive — only one pipeline per input

File-first API pattern adopted:

  • All JSON payloads written to /tmp files before curl (echo > /tmp/file.json && curl -d @file)

  • Eliminates terminal line-wrap breaking inline JSON (lost 3 rounds to this)

Screenshots captured:

  • monad-pipeline-overview-2026-06-18-1338.png — before output rename

  • monad-pipeline-renamed-2026-06-18-1349.png — after edge rename

  • monad-outputs-renamed-2026-06-18-1505.png — after output rename

  • saas-pipeline-created-2026-06-18-1738.png — SaaS pipeline creation

Sentinel pricing:

  • Confirmed $4.30/GB pay-as-you-go — updated team presentation diagram

TCP Clocks — Claroty Meeting + Profile Check + Clock Down

  • Meeting with Omer (Claroty) — request full MAC list added with asset attributes for TimeClock profiling

  • Medigate email drafted but not sent — will communicate directly on the call instead

  • Attributes needed: assetVendor: TCP Software, assetProductId: TimeClock Plus, assetDeviceType: Time Clock

  • ~15 profiled, ~141 pending — verify with DataConnect Step 2 in session-2026-06-18

  • d001 open tcp-clocks for session docs

  • TODO tomorrow: run DataConnect Step 2c on work ISE to count profiled vs unprofiled

Before — extract email with placeholder
sed -n '/^Hi \[Medigate/,/^Evan$/p' \
  data/d001/projects/tcp-clocks/partials/comms-2026-06-17-medigate-attributes.adoc
Change — replace placeholder with Omer Joffe
sed -n '/^Hi \[Medigate/,/^Evan$/p' \
  data/d001/projects/tcp-clocks/partials/comms-2026-06-17-medigate-attributes.adoc | \
  sed 's/\[Medigate contact\]/Omer Joffe/'
After — verify substitution
sed -n '/^Hi \[Medigate/,/^Evan$/p' \
  data/d001/projects/tcp-clocks/partials/comms-2026-06-17-medigate-attributes.adoc | \
  sed 's/\[Medigate contact\]/Omer Joffe/' | head -1
Open, load creds, run profile check
d001 open tcp-clocks
dsource d001 dev/network/ise

Copy ers() and dc_query() from session-2026-06-18.adoc Step 1, then run Step 2 (profile summary).

Build and open tcp-clocks project
find data/d001/projects/tcp-clocks -maxdepth 1 -name '*.adoc' -not -name 'README.adoc' | \
  while read -r f; do build-adoc "$f" html --variant light-cyan; done && \
  firefox data/d001/projects/tcp-clocks/output/tcp-clocks.html &

Clock Down — Reported by Chris Maubery

  • Reported: 2026-06-18

  • Reporter: Chris Maubery

  • Device: TCP TimeClock Plus

  • IP: 10.238.69.248

  • MAC: 40:AC:8D:00:93:EC

  • Subnet: 10.238.69.0/24 (broadcast 10.238.69.255)

  • TX/RX: 4.00 KB / 10.00 KB — minimal traffic

  • Screenshot: data/d001/projects/tcp-clocks/resources/clock-down-chris-2026-06-18.jpg

Assessment: Clock has valid IP and MAC — it’s on the network. Low TX/RX (14 KB total) indicates the clock is not communicating with the TCP server. This is a device/application issue, not a network or ISE authentication issue.

Disposition: Referred back to Chris — clock has network connectivity, server communication is the issue. Not an ISE/802.1X problem.

Future reference — ISE triage commands for clock issues
d001 open tcp-clocks
dsource d001 dev/network/ise

# Look up endpoint by MAC
ers GET /ers/config/endpoint?filter=mac.EQ.40:AC:8D:00:93:EC

# Check auth session history via DataConnect
dc_query "SELECT * FROM radius_authentications WHERE calling_station_id = '40-AC-8D-00-93-EC' ORDER BY timestamp_timezone DESC FETCH FIRST 5 ROWS ONLY"

# Ping test
ping -c 3 10.238.69.248
Queries reference
See: data/d001/projects/tcp-clocks/partials/queries-ers.adoc
See: data/d001/projects/tcp-clocks/partials/queries-dataconnect.adoc

Abnormal Security — Tester Expansion CR

Meeting with William Cox, Carlos Sandoval, Mauricio Naranjo — team agreed to expand Abnormal pilot group. Confidence high after 6 weeks, zero incidents.

CR drafted: Expand Abnormal-Pilot-Users@chla.usc.edu (21 members) to server team (Wed 06-25) then all IS (Thu 06-26). Submit to iTrack NLT 2026-06-20.

Key decisions from meeting:

  • Team is confident to expand — Carlos: "keep going forward"

  • Dr. Kiefer and Dr. McGuire want to review the job aid before expansion

  • Alex Mejia drafting job aid — Will Cox coordinates review

  • Mauricio: full Abnormal/MDO benefit requires MX cutover (separate timeline) — ESA still inline, masking source senders

  • Enhanced filtering deferred per Jihad’s guidance — wait for MX cutover

Completed today:

  • Enumerated pre-change state — groups, members, transport rules, anti-spam, safe links, safe attachments

  • Exported abnormal-prechange.json for audit/rollback reference

  • Built CR with iTrack fields, dispositio, RACI assignments, implementation steps (before/change/after)

  • Graphviz architecture diagram — single security group scopes all 4 policies

  • Rollback plan with all 21 original pilot members hardcoded

  • Personal PowerShell analysis commands — enumeration, validation, post-change snapshot

  • Standalone CR assembler built to HTML (304K)

Pending:

  • Review Will Cox’s job aid — provide feedback

  • Submit CR to iTrack NLT 2026-06-20

  • Confirm server team member list with William

  • Confirm full IS member list with William

Files:

  • CR: d001 open abnormal-securitypartials/cr-tester-expansion-2026-06-18.adoc

  • Assembler: cr-tester-expansion.adoc → build to HTML/DOCX for CAB

  • Pre-change: resources/abnormal-prechange.json

  • Meeting transcript: resources/meeting-CR-expansion-2026-06-18.adoc

  • Enumeration: resources/proj-info.adoc

  • Diagram: diagrams/cr-expansion-architecture.dot

Mandiant Wireless Remediation

  • 7 findings (WIR-H/I/L/M) under remediation

  • Guest ACL hardening: GUEST_CWA_REDIRECT_MAX_SECURITY dACL

  • EAP cert validation alignment with MSCHAPv2 migration

  • Wi-Fi Direct remediation via GPO

MSCHAPv2 → EAP-TLS Migration

  • 6,088 devices across 9 platforms (Wyse, Chrome, Vocera, JAMF, Intune, WS1, SCCM, GPO, Windows)

  • 5 migration waves

  • ISE EAP-TEAP and EAP-TLS policies deployed

  • Windows migration complete — non-Windows platform profile push in progress

  • 23 DataConnect SQL queries for compliance tracking

ASA VPN — Okta-to-Entra SAML Migration

  • Cutover: 2026-07-14

  • Cert expiry: 2026-07-28

  • Stakeholders: Tony Sun (ASA), Justin Halbmann (Entra ID), Evan (ISE)

  • Status: coordination in progress

ED Sewer Pump — ISE Segmentation

  • Assigned by Sarah (CISO)

  • Email sent to Karen Patterson (PM) for device details

  • Waiting: MAC address, protocol, switch/port info

  • d001 open ed-sewer-pump for project docs

ISE Certificate Renewal + Patch 10

  • CVE-2026-20147 (CVSS 9.9) — patch sequencing

  • ISE 3.4 migration blocked by patch

  • Cert renewal status: verify scope

BMS Controller Segmentation

  • Claroty xDome + ISE dACL

  • 77 device models, 7 buildings

  • Related: ED sewer pump (same onboarding pattern)

  • Related: TCP clocks (same Claroty profiling chain)

Claroty xDome API — Discovery

  • Omer confirmed Claroty has REST API

  • User created: erosado-api — read-only admin

  • Unified Claroty API reference built: data/d000/infra/claroty-api-reference/ — assembler + 5 partials

  • claroty() helper function matching ers() pattern documented

  • Credentials stored in dsec: d001 dev/network/claroty (separate from ISE — no blast radius overlap)

  • TODO tomorrow: dsec edit d001 dev/network/claroty — fill in real API key from dashboard at work

  • TODO tomorrow: test first API call — claroty GET /devices?limit=5

  • Ties to: tcp-clocks (validate Claroty sees all 165 MACs), BMS segmentation (77 device models)

Secrets Management — Claroty API Credential Setup

Added Claroty xDome API credentials to d001 secrets — separate file, separate blast radius from ISE.

Create the env file
cat > /tmp/claroty.env <<'EOF'
###############################################################################
# CLAROTY xDOME API
###############################################################################
# User: erosado-api (read-only admin)
# Created: 2026-06-18

CLAROTY_API_URL=https://<claroty-instance-url>/api
CLAROTY_API_USER=erosado-api
CLAROTY_API_KEY=<API_TOKEN_FROM_DASHBOARD>
CLAROTY_CA_CERT=~/.secrets/certs/d001/claroty-ca.crt
EOF
Add to dsec and shred source
dsec add d001 dev/network/claroty /tmp/claroty.env
Edit at work to fill in real values
dsec edit d001 dev/network/claroty
Load alongside ISE
dsource d001 dev/network/ise
dsource d001 dev/network/claroty
Verify loaded
env | grep -i CLAROTY
View secret tree
dsec tree d001
Pattern: separate credentials per system
d001/dev/network/ise       ← ISE ERS, MnT, DataConnect, pxGrid
d001/dev/network/claroty   ← Claroty xDome API (NEW)
d001/lab/network           ← Monad pipeline API

Each system gets its own encrypted env file. dsource loads them independently. No blast radius overlap.

Secrets Verification — Masked Output

Verify loaded credentials without exposing values.

# Show loaded vars with masked values
env | grep -i MONAD | sed 's/=.*/=********/'

# ISE credentials
env | grep -i ISE | sed 's/=.*/=********/'

# Claroty credentials
env | grep -i CLAROTY | sed 's/=.*/=********/'

# All loaded dsec vars
env | grep -i DSEC | sed 's/=.*/=********/'

The pattern: env | grep -i <SYSTEM> | sed 's/=./=*/' — confirms keys are loaded without printing values to terminal or logs.

find -mmin: locate recently modified files

# Find files modified in the last 10 minutes and move them
mv $(find . -name 'diagram-as-*.adoc' -mmin -10) data/d000/education/diagram-as-code/

# Find files modified in the last hour
find . -name '*.adoc' -mmin -60 -type f

# Find files modified today (last 24h)
find . -name '*.adoc' -mtime 0 -type f

-mmin -N = modified within the last N minutes. -mtime 0 = modified within the last 24 hours. The surgical tool when you know "I just made this."

Process Substitution — <() Power Patterns

Process substitution turns command output into a file descriptor. Any tool that requires a file argument can now consume live pipeline output — zero temp files.

Diff live state against baseline
Compare remote config without saving either to disk
diff <(ssh sw-01 'show run') <(ssh sw-02 'show run')
What changed in git between branches — no checkout needed
diff <(git show main:docs/antora.yml) <(git show feature-branch:docs/antora.yml)
What packages appeared since last snapshot
diff <(pacman -Qq | sort) <(sort /tmp/last-known-packages.txt)
comm — set operations on live data

comm requires sorted files. <() makes it work on command output directly.

Endpoints in ISE but NOT in AD — orphaned machine accounts
comm -23 \
  <(curl -sk -u "${ISE_USER}:${ISE_PASS}" \
    "https://${ISE_IP}:9060/ers/config/endpoint" \
    -H 'Accept: application/json' \
    | jq -r '.SearchResult.resources[].name' | sort) \
  <(ldapsearch -x -b 'dc=inside,dc=domusdigitalis,dc=dev' \
    '(objectClass=computer)' cn \
    | awk '/^cn:/{print $2}' | sort)
Packages on this machine but NOT on kvm-02
comm -23 <(pacman -Qq | sort) <(ssh kvm-02 'pacman -Qq' | sort)
paste — merge parallel streams
Side-by-side: hostname + resolved IP + open ports
paste \
  <(cat hosts.txt) \
  <(while read h; do dig +short "$h"; done < hosts.txt) \
  <(while read h; do nmap -sT -p22,443 --open "$h" 2>/dev/null \
    | awk '/open/{printf "%s ", $1}'; echo; done < hosts.txt)
sort -m — merge pre-sorted streams
Merge logs from three sources in time order — without loading all into memory
sort -m \
  <(zcat /var/log/syslog.1.gz | sort) \
  <(journalctl --since yesterday --no-pager | sort) \
  <(sort /var/log/ise/ise-psc.log)
source — load secrets without touching disk
Load Vault secrets as environment variables — no plaintext on filesystem
source <(vault kv get -format=json kv/myapp \
  | jq -r '.data.data | to_entries[]
    | "export \(.key)=\(.value)"')
awk FNR==NR — correlate across live sources
Cross-reference ISE auth failures with AD group membership
awk -F, 'FNR==NR{blocked[$1]; next} ($2 in blocked){print $2, $5}' \
  <(grep 'FAIL' /var/log/ise-auth.csv | cut -d, -f3) \
  <(ldapsearch -x '(objectClass=user)' sAMAccountName memberOf \
    | awk '/^sAMAccountName:|^memberOf:/{printf "%s,", $2}')
ISE ERS — compare endpoint state across nodes
Diff endpoint count by group between ISE PAN and PSN
diff \
  <(curl -sk -u "${ISE_USER}:${ISE_PASS}" \
    "https://ise-01:9060/ers/config/endpoint?size=100" \
    -H 'Accept: application/json' \
    | jq -r '.SearchResult.resources[].name' | sort) \
  <(curl -sk -u "${ISE_USER}:${ISE_PASS}" \
    "https://ise-02:9060/ers/config/endpoint?size=100" \
    -H 'Accept: application/json' \
    | jq -r '.SearchResult.resources[].name' | sort)
The mental model

<(cmd) creates a /dev/fd/N that contains cmd’s stdout. Any program that only accepts file arguments — `diff, comm, join, paste, sort -m, source, wc, vimdiff, programs with --config=FILE — can now consume live data. Without it: write to /tmp, process, clean up. Three steps collapsed to zero.

Shell Substitutions — The Complete Seven

Seven substitution mechanisms in bash/zsh. Each replaces an expression with a value before the command executes. Mastering all seven eliminates temp files, subshells, and intermediate variables.

1. Command Substitution — $(cmd)

The shell executes cmd, captures its stdout, and inserts it as an argument.

Open all recently modified AsciiDoc files in nvim
nvim $(find docs/modules/ROOT/partials -name '*.adoc' -mmin -30)
Jump to the directory of a binary
cd $(dirname $(which vault))
Embed git metadata into a variable
COMMIT_MSG="deploy: $(git -C ~/atelier/_bibliotheca/domus-captures log -1 --format='%s')"
Nested — get the IP of the host running a specific container
ssh $(dig +short $(docker inspect --format='{{.Config.Hostname}}' kroki))

Design: turns command output into arguments.
Versus process substitution: <() turns output into a file descriptor. Use $() when the consumer wants a string; use <() when the consumer wants a filename.

2. Process Substitution — <(cmd) and >(cmd)

Covered in the companion partial. Creates /dev/fd/N — a file descriptor from command output (input form) or to command input (output form).

The output form >(cmd) — tee without a temp file
# Send build output to both terminal AND a timestamped log
make build 2>&1 | tee >(awk '{print strftime("%T"), $0}' > /tmp/build-timestamped.log)
Split a stream into two different filters simultaneously
cat /var/log/syslog | tee >(grep 'error' > /tmp/errors.log) >(grep 'warn' > /tmp/warnings.log) > /dev/null
3. Variable (Parameter) Substitution — ${var…​}

The richest substitution family. String manipulation without sed/awk.

Default values — :- (use default) and := (assign default)
THEME="${PDF_THEME:-light-cyan}"        # Use light-cyan if unset
EDITOR="${EDITOR:=nvim}"                # Assign nvim if unset (persists)
String stripping — (front), % (back), #/%% (greedy)
filepath="/home/evan/atelier/_bibliotheca/domus-captures/docs/antora.yml"
echo "${filepath##*/}"                  # antora.yml       (strip longest prefix)
echo "${filepath%/*}"                   # .../docs         (strip shortest suffix)

tarball="domus-captures-2026-06-18.tar.gz"
echo "${tarball%%.*}"                   # domus-captures-2026-06-18 (strip all extensions)
echo "${tarball#*.}"                    # tar.gz           (strip first extension)
Substitution — ${var/pattern/replacement} and ${var//pattern/replacement}
branch="feature/ise-cert-renewal"
echo "${branch/\//-}"                   # feature-ise-cert-renewal (first match)

path="docs/modules/ROOT/pages"
echo "${path//\//.}"                    # docs.modules.ROOT.pages (all matches)
Length, substring, case
str="domus-captures"
echo "${#str}"                          # 14              (length)
echo "${str:6:8}"                       # captures        (substring offset:length)
echo "${str^^}"                         # DOMUS-CAPTURES  (uppercase)
echo "${str^}"                          # Domus-captures  (capitalize first)
Error on unset — :? (fail fast, don’t proceed with empty value)
: "${ISE_IP:?ISE_IP must be set}"       # Exits with error if unset
: "${VAULT_TOKEN:?Run vault login first}"
4. Arithmetic Substitution — $expr

Integer math inline. No bc or expr needed.

echo "Days since origin: $(( ($(date +%s) - $(date -d '2026-03-12' +%s)) / 86400 ))"

# Loop with arithmetic
for i in $(seq 1 $(($(nproc) * 2))); do echo "Worker $i"; done

# Conditional increment
count=0; files=$(find . -name '*.adoc' | wc -l); total=$((count + files))
5. Brace Expansion — {a,b,c} and {1..10}

Not a substitution in the strict sense — the shell expands before any command runs. No variable or command evaluation.

Multi-target operations
# Create project skeleton in one shot
mkdir -p data/d001/projects/new-project/{partials,certs,config-snapshots,scripts,output}

# Copy a file to multiple destinations
for dest in /tmp/{backup-1,backup-2,backup-3}; do cp antora.yml "$dest/"; done

# Diff two numbered files
diff docs/modules/ROOT/pages/2026/{05,06}/index.adoc
Sequences with padding
# Zero-padded server names
for i in {01..12}; do echo "kvm-${i}.inside.domusdigitalis.dev"; done

# Alphabet
for letter in {a..z}; do echo "$letter"; done

# Step sequences
for i in {0..100..5}; do echo "VLAN $i"; done
Cartesian product — every combination
echo {ise,vault,bind}-{01,02}.inside.domusdigitalis.dev
# ise-01.inside... ise-02.inside... vault-01.inside... vault-02.inside... bind-01.inside... bind-02.inside...
6. Tilde Expansion — ~

Shell expands ~ to $HOME, ~user to that user’s home, ~+ to $PWD, ~- to $OLDPWD.

ls ~/atelier/_bibliotheca/                      # Your home
ls ~root/.ssh/                                  # Root's home
diff ~+/antora.yml ~-/antora.yml                # Current dir vs previous dir
7. Filename (Glob) Expansion — *, ?, […​]

The shell expands glob patterns to matching filenames before the command runs.

Standard globs
ls docs/modules/ROOT/pages/2026/06/WRKLOG-*.adoc          # All June worklogs
cat docs/modules/ROOT/partials/nav/{standards,portfolio}.adoc  # Two specific files
rm /tmp/make-build-2026-06-1?.adoc                         # ? = single char
Extended globs (bash shopt -s extglob, zsh has by default)
# Everything EXCEPT .age files
ls data/d000/personal/dissolutio/!(*.age)

# Files matching multiple patterns
ls docs/modules/ROOT/pages/2026/06/@(WRKLOG|SESSION)-*.adoc

# Zero or more repetitions
ls *.*(adoc|yml)
Zsh-specific recursive globbing
# All .adoc files recursively (zsh only — replaces find entirely)
ls docs/**/*.adoc

# Only files modified today
ls docs/**/*.adoc(m0)

# Only files larger than 10K
ls docs/**/*.adoc(Lk+10)
Substitution at a glance
Substitution Syntax Produces

Command

$(cmd)

stdout as string argument

Process

<(cmd) / >(cmd)

stdout/stdin as file descriptor

Variable

$\{var:-default}, $\{var##pattern}, etc.

transformed string from variable

Arithmetic

$expr

integer result

Brace

\{a,b}, \{1..10}

word list (pre-expansion, no eval)

Tilde

~, ~user, ~+, ~-

directory path

Filename

, ?, […​], *

matching filenames

Pipeline Composition — Orchestrating Tools

Pipelines are shell substitution #0 — the one so fundamental it doesn’t get listed. Every pipe replaces a temp file. Every stage does one thing. The output of each becomes the input of the next.

The five pipeline shapes

1. Linear — each stage filters or transforms

Find which d001 projects reference DataConnect queries (not encrypted)
find data/d001 -name '*.adoc' -not -name '*.age' \
  | xargs grep -l 'dc_query' \
  | sort

Three tools. find locates, xargs grep filters by content, sort orders. No temp files.

2. Fan-out — one source, multiple consumers via tee

Build output goes to terminal AND timestamped log AND error-only file
make build 2>&1 \
  | tee /tmp/build-full-$(date +%F).log \
  | tee >(grep '"level":"error"' > /tmp/build-errors-$(date +%F).log) \
  | tail -5

tee splits the stream. Process substitution >() sends a copy to grep for filtering. Terminal sees the tail. Three outputs from one command.

3. Reduce — aggregate a stream into a summary

Count file types in your entire repo
find docs -type f \
  | awk -F. '{print $NF}' \
  | sort | uniq -c | sort -rn \
  | head -15
Count ISE endpoints by identity group from CSV
awk -F, 'NR>1 {s[$3]++} END {for (k in s) printf "%s: %d\n", k, s[k]}' \
  data/d001/projects/tcp-clocks/output/mac-list-all-clocks.csv

awk arrays as accumulators — the END block runs after all input is consumed.

4. Guard — conditional execution in the pipeline

Only push if build succeeds
make build 2>&1 | tee /tmp/build.log \
  && grep -q '"level":"error"' /tmp/build.log \
  && echo "ERRORS — not pushing" \
  || git push origin main
Idempotent operations with grep -q as a guard
grep -q 'AppArmor' /etc/default/grub \
  || echo 'GRUB_CMDLINE_LINUX="apparmor=1 security=apparmor"' \
  | sudo tee -a /etc/default/grub

grep -q exits 0 (true) if found, 1 (false) if not. || runs the next command only on failure. The operation is idempotent — running it twice changes nothing.

5. Parallel — concurrent execution with & + wait

Push to multiple remotes simultaneously
git -C ~/atelier/_bibliotheca/domus-captures push origin main &
git -C ~/atelier/_bibliotheca/domus-infra-ops push origin main &
git -C ~/atelier/_bibliotheca/domus-ise-linux push origin main &
wait
echo "All pushes complete"
Parallel builds with xargs
find data/d001/projects/*/partials -name 'assembler.adoc' -print0 \
  | xargs -0 -P4 -I{} build-antora-page.sh "{}" html --variant light-cyan

-P4 runs 4 concurrent processes. -print0 / -0 handles spaces in paths.

Composing across tool boundaries

The real power: combining pipeline shapes with substitutions.

Find recently modified files, diff against git HEAD
for f in $(find docs -name '*.adoc' -mmin -30); do
  diff <(git show HEAD:"$f" 2>/dev/null) "$f" && echo "$f: unchanged" || echo "$f: MODIFIED"
done

Command substitution feeds find results into a loop. Process substitution feeds git show output into diff. Three substitution types in four lines.

ISE ERS — find endpoints not in any identity group
comm -23 \
  <(curl -sk -u "${ISE_USER}:${ISE_PASS}" \
    "https://${ISE_IP}:9060/ers/config/endpoint?size=100" \
    -H 'Accept: application/json' \
    | jq -r '.SearchResult.resources[].id' | sort) \
  <(curl -sk -u "${ISE_USER}:${ISE_PASS}" \
    "https://${ISE_IP}:9060/ers/config/identitygroup" \
    -H 'Accept: application/json' \
    | jq -r '.SearchResult.resources[].id' | sort)

comm -23 = items in first set but not second. Two API calls, no temp files, instant set difference.

Anti-patterns
Anti-pattern Fix Why

cat file | grep pattern

grep pattern file

UUOC — useless use of cat

grep pattern | awk '{print $2}'

awk '/pattern/{print $2}' file

awk already does the grep

echo "$var" | command

command <<< "$var"

Here-string avoids a subshell

Long chain to temp files

<() process substitution

Zero disk I/O, atomic

ps aux | grep foo | grep -v grep

pgrep -a foo

Purpose-built tool

Five Roads to Rome — Same Task, Five Tools

Every retrieval, every transform, every filter has multiple implementations. Knowing all five lets you choose by context — speed, readability, composability, what’s already in the pipeline.

Road 1: Find a file by name
# find — the universal tool (POSIX, works everywhere)
find docs -name 'shell-substitutions.adoc'

# fd — Rust, faster, respects .gitignore
fd shell-substitutions docs

# locate — pre-indexed, instant (if updatedb runs)
locate shell-substitutions.adoc

# glob — zsh recursive (no external tool)
ls docs/**/shell-substitutions.adoc

# grep the nav — if it's linked, the nav knows where
grep -rn 'shell-substitutions' docs/modules/ROOT/nav.adoc
Road 2: Search content across files
# grep — the standard
grep -rn 'process substitution' docs/ --include='*.adoc'

# rg (ripgrep) — faster, smart-case, .gitignore-aware
rg 'process substitution' docs/ --type adoc

# awk — when you need fields, not just lines
awk '/process substitution/{print FILENAME":"NR": "$0}' docs/modules/ROOT/**/*.adoc

# find + grep — when you need find's predicates (size, time, depth)
find docs -name '*.adoc' -mtime -7 -exec grep -ln 'process substitution' {} \;

# git grep — only searches tracked files, ignores build artifacts
git grep -n 'process substitution' -- '*.adoc'
Road 3: Extract a field from structured output
Get the PID of a running nvim process
# awk — field extraction by position
ps aux | awk '/[n]vim/{print $2}'

# pgrep — purpose-built
pgrep -a nvim

# lsof + awk — find by open file
lsof | awk '/adhoc/{print $2; exit}'

# cut — when fields are delimiter-separated
ps -eo pid,comm | grep nvim | cut -d' ' -f1

# sed — extract with capture groups
ps aux | sed -n '/[n]vim/s/\S\+\s\+\(\S\+\).*/\1/p'
Road 4: Transform text
Convert a list of hostnames to a CSV
# paste — join lines with delimiter
echo -e "ise-01\nise-02\nvault-01" | paste -sd,

# awk — printf with ORS
echo -e "ise-01\nise-02\nvault-01" | awk '{printf "%s%s", sep, $0; sep=","} END{print ""}'

# tr — character replacement
echo -e "ise-01\nise-02\nvault-01" | tr '\n' ',' | sed 's/,$/\n/'

# sed — join with hold buffer
echo -e "ise-01\nise-02\nvault-01" | sed ':a;N;s/\n/,/;ta'

# xargs — the quick-and-dirty join
echo -e "ise-01\nise-02\nvault-01" | xargs | tr ' ' ','
Road 5: Count occurrences by category
Count files by extension in your repo
# awk arrays — the professional way
find docs -type f | awk -F. '{a[$NF]++} END{for(k in a) printf "%5d %s\n", a[k], k}' | sort -rn

# sort + uniq -c — the quick way
find docs -type f | awk -F. '{print $NF}' | sort | uniq -c | sort -rn

# wc -l with grep — one category at a time
echo "adoc: $(find docs -name '*.adoc' | wc -l)"
echo "yml:  $(find docs -name '*.yml'  | wc -l)"

# fd + --extension — Rust tool for single-type count
fd -e adoc . docs | wc -l

# bash associative array — when you need it in a script
declare -A counts
while IFS= read -r f; do
  ext="${f##*.}"; ((counts[$ext]++))
done < <(find docs -type f)
for k in "${!counts[@]}"; do printf "%5d %s\n" "${counts[$k]}" "$k"; done | sort -rn
When to pick which road
Context Best road

Quick one-off lookup

rg or fd — fastest feedback loop

Inside a script

find + awk — POSIX portable, no dependencies

Composing into a pipeline

awk — does grep + cut + printf in one process

Debugging interactively

grep -n with -B/-A context — see surroundings

Searching only tracked files

git grep — ignores build output, respects .gitignore

The roads are not equal. awk is almost always the right answer for structured data — it eliminates grep | cut | sed chains into a single process. But knowing all five means you never stall. If one tool doesn’t fit the shape of your data, another one does.

awk Power Patterns — From Your Own Pipelines

Every pattern below comes from something you actually built this week. These are not textbook examples — they’re your infrastructure talking back to you.

Pattern 1: Field extraction with early exit

From your lsof pipeline on 06-16:

# Find PID of process holding a file — stop at first match
lsof | awk '/adhoc/{print $2; exit}'

# Capture it into a variable (command substitution + awk)
pid=$(lsof | awk '/adhoc/{print $2; exit}')
kill "$pid"

exit after the first match saves scanning the entire lsof output (thousands of lines). Without exit, awk reads every line.

Pattern 2: gsub + ternary + printf — the dashboard pattern

From your nmcli dashboard on 06-16:

nmcli -t -f NAME,TYPE,DEVICE,ACTIVE con show | awk -F: '{
  t=$2; gsub("802-11-wireless","wifi",t); gsub("802-3-ethernet","eth",t)
  printf "%s %-30s %-8s %-12s\n", ($4=="yes"?"🟢":"⚫"), $1, t, ($3?$3:"-")
}'

Three techniques fused:

  • gsub("old","new",var) — in-place string replacement (like sed s///g but on a field)

  • ($4=="yes"?"🟢":"⚫") — ternary operator, inline conditional

  • printf "%-30s" — left-aligned fixed-width columns

This replaces: nmcli | sed | column -t | grep — four tools become one.

Pattern 3: Associative arrays — counting and grouping

From your TCP Clocks CSV analysis on 06-17:

# Count endpoints by identity group
awk -F, 'NR>1 {s[$3]++} END {for (k in s) printf "%s: %d\n", k, s[k]}' \
  data/d001/projects/tcp-clocks/output/mac-list-all-clocks.csv
  • NR>1 — skip header row

  • s[$3]++ — use field 3 as key, increment counter

  • END{} — runs once after all input consumed, iterate the array

Extend: top 5 groups, sorted
awk -F, 'NR>1 {s[$3]++} END {for (k in s) printf "%d\t%s\n", s[k], k}' file.csv \
  | sort -rn | head -5
Pattern 4: Range patterns — extract between delimiters

From your find + awk session on 06-17:

# Extract all source blocks from an AsciiDoc file
awk '/\[source\]/,/^----$/' $(find -name 'rsyslog-central*.adoc')

/start/,/stop/ — awk prints every line from the first match to the second match, inclusive. Repeats for every occurrence in the file.

Extract a specific config section from a switch backup
awk '/^interface Vlan10/,/^!/' show-run-backup.txt
Extract all ISE ERS response bodies from a curl log
awk '/^{/,/^}/' /tmp/ise-ers-debug.log
Pattern 5: Multi-file awareness — FILENAME, FNR, NR
# Which file has the most lines? (from your repo)
awk 'FNR==1{if(NR>1) printf "%6d %s\n", prev_count, prev_file; prev_count=0; prev_file=FILENAME}
     {prev_count++}
     END{printf "%6d %s\n", prev_count, prev_file}' \
  docs/modules/ROOT/pages/2026/06/WRKLOG-*.adoc | sort -rn | head -5
  • NR — total line count across all files (never resets)

  • FNR — line count within current file (resets each file)

  • FILENAME — current file being processed

  • FNR==1 — true on the first line of each new file

Pattern 6: Safe env inspection

From your evening session on 06-16:

# Names only — never expose values
env | awk -F= '{print $1}' | sort

# Filter out sensitive prefixes
env | awk -F= '$1 !~ /TOKEN|PASS|KEY|SECRET/{print}' | sort

$1 !~ /regex/ — field 1 does NOT match the pattern. Negative matching is the guard.

Pattern 7: printf formatting — aligned output
# Right-aligned numbers, left-aligned strings
printf "%8.1fM  %s\n" $(echo "52428800/1048576" | bc) "big-file.tar.gz"
#    50.0M  big-file.tar.gz

# From your find pipeline — bytes to MB
find ~ -type f -size +50M -printf '%s %p\n' | sort -rn | head -10 \
  | awk '{printf "%8.1fM  %s\n", $1/1048576, $2}'

Format specifiers:

  • %d — integer

  • %s — string

  • %f — float (%8.1f = 8 chars wide, 1 decimal)

  • %-30s — left-aligned, 30 chars wide

  • %02d — zero-padded integer (01, 02, …​ 10)

The awk decision tree
If you need…​ Use this awk pattern

First match only

/pattern/{print; exit}

Count by category

{a[$field]++} END{for(k in a)…​}

Range of lines

/start/,/stop/

Readable names

gsub("old","new",var)

Conditional formatting

(test ? "yes" : "no")

Aligned columns

printf "%-20s %5d\n", $1, $2

Skip headers

NR>1{…​}

Per-file processing

FNR==1{…​new file logic…​}

Education

CISSP Study

  • Exam: August 2026

  • Priority: Domain 1 → 8 → 6

  • Status: no early session today — operational load

Don Quijote — Lectura del día

Capítulo: XXXIX (Historia del cautivo, continuación)
Build: build-adoc data/d000/education/quijote-study/notas/p1-cap-039/p1-cap-039-notas.adoc html --variant light-cyan

Lo que leí hoy

Escribe en español.

Vocabulario nuevo
Palabra Definición Ejemplo en contexto

palabra

definición

cita del texto

Infrastructure

PowerShell Profile — Workstation Setup TODO

Dual environment: Arch/WSL (primary terminal) + PowerShell (Exchange Online, Entra, M365). Mouse-free workflow across both. Need $PROFILE configured for the same operational discipline.

Current state
  • No $PROFILE configured — every session starts cold

  • Connect-ExchangeOnline typed manually each time

  • No aliases, no prompt, no history persistence tuned

  • Enumeration scripts (like proj-info.adoc) are one-off — should be functions

TODO — PowerShell $PROFILE
# Check if profile exists
Test-Path $PROFILE

# Create if missing
if (!(Test-Path $PROFILE)) { New-Item -Path $PROFILE -ItemType File -Force }

# Edit
notepad $PROFILE
# or: code $PROFILE
# or: nvim $PROFILE (if available in pwsh)
Desired $PROFILE contents
# ── Prompt ──────────────────────────────────────────────────────────
function prompt {
    $path = (Get-Location).Path -replace [regex]::Escape($HOME), '~'
    Write-Host "erosado " -NoNewline -ForegroundColor Cyan
    Write-Host "$path" -NoNewline -ForegroundColor DarkGray
    Write-Host " >" -NoNewline -ForegroundColor White
    return " "
}

# ── Aliases ─────────────────────────────────────────────────────────
Set-Alias -Name which -Value Get-Command
Set-Alias -Name ll -Value Get-ChildItem

# ── Exchange Online ─────────────────────────────────────────────────
function exo { Connect-ExchangeOnline -ShowBanner:$false }
function exo-status { Get-ConnectionInformation | Select-Object State, UserPrincipalName }

# ── Abnormal Enumeration ───────────────────────────────────────────
function abnormal-audit {
    param([string]$pattern = "Abnormal")

    Write-Host "`n=== GROUPS ===" -ForegroundColor Cyan
    $groups = Get-Recipient -RecipientTypeDetails MailUniversalSecurityGroup |
        Where-Object { $_.Name -match $pattern -or $_.PrimarySmtpAddress -match $pattern }
    $groups | Select-Object Name, PrimarySmtpAddress

    Write-Host "`n=== GROUP MEMBERS ===" -ForegroundColor Cyan
    foreach ($g in $groups) {
        Write-Host "`n-- $($g.PrimarySmtpAddress) --" -ForegroundColor Yellow
        Get-DistributionGroupMember -Identity $g.PrimarySmtpAddress |
            Select-Object Name, PrimarySmtpAddress, RecipientType
    }

    Write-Host "`n=== TRANSPORT RULES ===" -ForegroundColor Cyan
    Get-TransportRule | Where-Object {
        $_.SentToMemberOf -match $pattern -or $_.FromMemberOf -match $pattern
    } | Select-Object Name, State, Mode, SentToMemberOf

    Write-Host "`n=== ANTI-SPAM RULES ===" -ForegroundColor Cyan
    Get-HostedContentFilterRule | Where-Object {
        $_.SentToMemberOf -match $pattern
    } | Select-Object Name, Priority, SentToMemberOf

    Write-Host "`n=== SAFE LINKS RULES ===" -ForegroundColor Cyan
    Get-SafeLinksRule | Where-Object {
        $_.SentToMemberOf -match $pattern
    } | Select-Object Name, Priority, SentToMemberOf

    Write-Host "`n=== SAFE ATTACHMENT RULES ===" -ForegroundColor Cyan
    Get-SafeAttachmentRule | Where-Object {
        $_.SentToMemberOf -match $pattern
    } | Select-Object Name, Priority, SentToMemberOf
}

# ── Abnormal Pre/Post Change Export ────────────────────────────────
function abnormal-snapshot {
    param([string]$suffix = (Get-Date -Format "yyyy-MM-dd-HHmm"))
    $pattern = "Abnormal"
    $groups = Get-Recipient -RecipientTypeDetails MailUniversalSecurityGroup |
        Where-Object { $_.Name -match $pattern -or $_.PrimarySmtpAddress -match $pattern }

    $out = "$HOME\abnormal-$suffix.json"
    @{
        Timestamp = Get-Date -Format o
        Groups = $groups
        Members = foreach ($g in $groups) {
            Get-DistributionGroupMember -Identity $g.PrimarySmtpAddress
        }
        TransportRules = Get-TransportRule | Where-Object {
            $_.SentToMemberOf -match $pattern -or $_.FromMemberOf -match $pattern
        }
        SpamRules = Get-HostedContentFilterRule | Where-Object {
            $_.SentToMemberOf -match $pattern
        }
        SafeLinks = Get-SafeLinksRule | Where-Object {
            $_.SentToMemberOf -match $pattern
        }
        SafeAttachments = Get-SafeAttachmentRule | Where-Object {
            $_.SentToMemberOf -match $pattern
        }
    } | ConvertTo-Json -Depth 5 | Out-File $out
    Write-Host "Snapshot saved: $out" -ForegroundColor Green
}

# ── Group Management ───────────────────────────────────────────────
function group-members {
    param([string]$identity)
    Get-DistributionGroupMember -Identity $identity |
        Select-Object Name, PrimarySmtpAddress | Sort-Object Name | Format-Table
}

function group-count {
    param([string]$identity)
    (Get-DistributionGroupMember -Identity $identity).Count
}

function group-add {
    param([string]$identity, [string[]]$members)
    foreach ($m in $members) {
        try {
            Add-DistributionGroupMember -Identity $identity -Member $m
            Write-Host "Added: $m" -ForegroundColor Green
        } catch {
            Write-Warning "Failed: $m — $($_.Exception.Message)"
        }
    }
}

function group-remove {
    param([string]$identity, [string[]]$members)
    foreach ($m in $members) {
        Remove-DistributionGroupMember -Identity $identity -Member $m -Confirm:$false
        Write-Host "Removed: $m" -ForegroundColor Yellow
    }
}

# ── Anti-Spam Quick Check ──────────────────────────────────────────
function spam-policy {
    param([string]$name = "Default Anti-Spam Policy - Abnormal Best Practices")
    $p = Get-HostedContentFilterPolicy -Identity $name
    [PSCustomObject]@{
        Name = $p.Name
        AllowedSenders = $p.AllowedSenders.Count
        AllowedDomains = $p.AllowedSenderDomains.Count
    }
}

# ── Startup ─────────────────────────────────────────────────────────
Write-Host "erosado — pwsh ready" -ForegroundColor DarkGray
WSL ↔ PowerShell bridge patterns
# From WSL/Arch — run PowerShell command
powershell.exe -Command "Get-DistributionGroupMember -Identity 'Abnormal-Pilot-Users@chla.usc.edu' | Select Name"

# From PowerShell — run WSL command
wsl -e bash -c 'curl -sS -H "X-API-Key: $MONAD_API_KEY" ...'

# Share files between environments
cp /mnt/c/Users/erosado/abnormal-prechange.json ~/
cp ~/output.json /mnt/c/Users/erosado/Desktop/

Ad-Hoc Requests

Ad-Hoc Requests

Capture walk-ups, Teams pings, and unplanned work here.

*


Work (CHLA)

CHARGE TIME IN PEOPLESOFT - CRITICAL. Do this NOW before anything else.

Critical (P0)

Project Description Owner Status Due Blocker

Linux Research (Xianming Ding)

EAP-TLS for Linux workstations, dACL, UFW

Evan

BEHIND (72 days overdue)

02-24

Certificate "password required" - nmcli fix documented

iPSK Manager

Pre-shared key automation

Ben Castillo

BEHIND

 — 

DB replication issues

MSCHAPv2 Migration

Legacy auth deprecation — 6,227 devices, 5 waves. 6 batch SQL queries + 3-API endpoint profile script added (05-11). Report due.

Evan

25% — Report due, batch queries ready

05-30

Report to turn in

Research Segmentation

All endpoints to Untrusted VLAN

Evan

BLOCKED

 — 

CISO decision pending

Disaster Recovery

ISE DR scoping — dot1x closed mode = total blackout

Evan

Scoping

 — 

 — 

Mandiant Remediation

Copy 4/16 findings, Guest ACL lab, Q2 assessment

Evan

Active

 — 

 — 

SIEM QRadar → Sentinel

Full SIEM platform transition. Monad console error resolved 05-12. Secrets configured. Blocked on DCR creation (Rule ID + Stream Name). Azure private network policy unresolved.

Evan

Active — blocked on DCR

Q2 2026

Victor/Mauricio: create DCR, resolve Azure network policy

Abnormal Security

AI email platform — ESA cutover. CR assigned, CAB May 12 15:00. Implementation May 14 10:00.

Evan

Active — CAB today 15:00

05-14

Pre-CAB checklist: confirm Tyler, Jason, Sarah

High Priority (P1)

Project Description Owner Status Target

ISE 3.4 Migration

Upgrade from 3.2p9

Evan

Blocked — maintenance window needed

Q2 2026

Switch Upgrades

IOS-XE fleet update (C9300, 3560CX)

Evan

Pending

Q2 2026

Spikewell BYOD VPN

dACL SQL, AD group integration

Evan

Active

 — 

Strongline Gateway

MAC capture, Identity Group setup — 37 days aging

Evan

Active — David Rukiza assigned

 — 

Abnormal Security

AI email security platform research, ESA cutover timeline

Evan

Newly assigned

 — 

DMZ Migration

External services audit behind NetScaler

Evan

Audit phase

 — 

Firewall Audit (murus-portae)

EtherChannel query, prefilter, policy assignments

Evan

Scoping — ASA API creds needed

 — 

iPSK Manager HA

Server 2 config, TLS, SQL security audit

Evan

In progress

 — 

Sentinel KQL

Build proficiency, distinguish from team

Evan

Onboarding

 — 

VNC Blocking

Block and eliminate VNC protocol enterprise-wide

Evan

Active — Phase 0 (Discovery)

Mid-June 2026

Strategic (P2)

Project Description Owner Status

HHS Regulatory Compliance

New HHS security policies implementation

TBD

NOT STARTED

InfoSec Reporting Dashboard

PowerBI metrics for executives

TBD

NOT STARTED

EDR Migration (AMP → Defender)

Endpoint protection consolidation

TBD

NOT STARTED

Azure Legacy Migration

Modern landing zone

Team

In Progress

ChromeOS EAP-TLS

SCEP + Victor, Paul testing

Victor

In Progress

P0 — Critical / Blocking

Security & Compliance

  • ISE 3.2 Patch 10 upgrade — CVE-2026-20147 CVSS 9.9 / CVE-2026-20148. Propose maintenance window once patch confirmed on software.cisco.com.

  • ISE Advisory sa-ise-rce-traversal-8bYndVrZ — check Patch 10 availability

  • Mandiant Remediation — findings status tracked. Working session prep + defensive posture documented (comms-2026-04-24). Copy 4/16 updates into Excel at work. Guest ACL lockdown (WIR-M-01) pending lab validation. appendix-todos updated with MSCHAPv2 milestones.

  • Guest ACL update — guest redirect ACL work needed. Lab validate GUEST_CWA_REDIRECT_MAX_SECURITY in d000, then joint CR with NE. On today’s task list.

  • Disaster Recovery & Downtime Procedures — ISE top priority (dot1x closed mode = SPOF for network access)

    • ISE DR: Document failover sequence — PAN, MnT, PSN priority order

    • ISE DR: RADIUS dead-server detection on WLCs/switches — critical-auth VLAN fallback

    • ISE DR: Backup/restore procedures — scheduled config backups, tested restores

    • FTD/FMC DR: FMC loss = no policy management

    • Network DR: Core/distribution switch failure, STP reconvergence, HSRP failover

    • Document RTO/RPO per system

SIEM Migration (QRadar → Sentinel)

  • SIEM QRadar → Sentinel Migration — LEAD ROLE. 4 collection iterations (Apr 16, 17, 17-streamlined, 20-streamlined). Python chart pipeline built (qradar-charts.py). Migration XLSX generated. Verification pending. Comms sent Apr 23.

    • d001 artifacts: 8 JSON exports, 2 CSV inventories, migration XLSX, top5 source SVG/PNG, verification doc

    • Dependency: Monad pipeline for log source transition

    • Dependency: Sentinel KQL proficiency for query migration

  • Monad Pipeline Evaluation (origin: 2026-03-11) — lead role. Console error RESOLVED 05-12. 06-09: Architecture decision — rsyslog (CHLXSYSLOG01) as collection tier → Monad → Sentinel. ISE lab → rsyslog → Monad 6-step execution guide created with 10 API calls. ASA lab logs already flowing through rsyslog. DCR still needed — Victor + Mauricio.

  • Sentinel KQL — build proficiency, distinguish from team. Azure portal access acquired.

  • QRadar log source report — run AQL queries, fetch JSON, generate Python Excel

Active Deployments & Migrations

  • MSCHAPv2 Migration — 6-sheet Standard Report ready. Migration window 05-04 to 05-30 CLOSED. Confirm final report status and next steps with team. 6,227 MSCHAPv2 devices, 14,249 EAP-TLS/TEAP (70% migrated).

  • MSCHAPv2 weekly cadence — recurring Wednesday call established (first 04-22). Completed 2026-04-22.

  • MSCHAPv2 ownership matrix — sent in scoping email 4/24 with manager callouts (@Albert, @John). Completed 2026-04-24.

  • TCP Clocks deployment — Batch 1: 7 clocks validated (OUI 40:AC:8D). Batch 2 (06-09): 9 new MACs (OUI 40:AC:BD) added via ERS. 1 one-off reassigned. New switch deployed without RADIUS/AAA — clocks can’t authenticate. Switch onboarding template + 3 validation queries documented. ERS queries self-contained with ers function.

  • SRT Research VLAN — confirm roles with Tony Sun: Tony implementor, Evan tester. CAB approved 04-21.

  • Downtime Computers enforcement — draft ISE AuthZ rule: medigate_724 + Wireless = DenyAccess. Separate CR. d001: DC queries, audit CSVs (v1-v3), wireless violations report delivered 04-21.

  • Enterprise Linux 802.1X — standardize Shahab/Ding deployment (CISO priority). Overdue since 02-24. Blocked by nmcli cert fix. 06-15: Assembler build fixed (26 errors → 0). Segmentation document extension to 06-16. d001 open linux-research to work on it.

  • Abnormal Security — CR-2026-05-07. Implemented 05-13. 06-09 update: Full policy review — 20-section EOP validation commands rebuilt, Hoxhunt SCL-1 investigation (intentional bypass confirmed), sclizer junk folder triage (~800 emails), Outlook reactions audit added, Connect-ExchangeOnline msalruntime fix documented. ESA migration expansion in progress — priority to move off ESA to full environment.

    • Team: Cox/William, Landeros/Jason, Rosado/Evan, Naranjo/Mauricio, Sandoval/Carlos

  • ASA VPN: Okta RADIUS → Entra SAML — (NEW 06-09) 5-phase migration plan built. ASA baseline captured (2 tunnel groups: CHLA_CORPORATE_USERS, CHLA_BYOD_USERS). 6 ISE policy screenshots. Tony Sun (ASA), Justin Halbmann (Entra/Okta), Evan (ISE). VPN cert expires 07-28. PDF deliverable ready. Share with team this week.

Tube System Upgrade (NEW — 06-01)

  • Tube System Upgrade — iTrack 3528165. 15x 10" TS stations need MAC addresses added to ISE identity group IoT_Onboard. MACs received from vendor (C8:1A:FE:20:xx:xx series). Station list spans ICU (CTICU, PICU, BMT, NICU, NICCU), ED, Surgery, Trauma, Pharmacy. Vendor contact: John Genest. Rationale: manufacturer no longer supports current system; failure risks delayed/missed patient care.

BMS Controller Segmentation (MIGRATED — 06-09)

  • BMS Controller Segmentation — Full migration from Principia LaTeX to d001. 12 partials, 5 Mermaid diagrams, 4 legacy PDFs, ISE screenshots. d001 open bms-controller. Completed 2026-06-09.

BMS Device Inventory (NEW — 04-24)

  • BMS Device Inventory — 72 devices discovered across 37 switches (04-24). Profile-driven architecture (Claroty/Medigate). 16 queries built. Phase 0 complete. Next: cross-reference with Visio diagrams, classify by function, begin D2 diagrams. Cleanup: delete 4 orphaned test groups, migrate 4 retire-dACL devices, investigate 3 null-profile devices.

VNC Blocking (NEW — 05-11)

  • VNC Blocking — block and eliminate VNC enterprise-wide. Due mid-June 2026. Phase 0: discovery. January AQL query baseline to incorporate. Cross-reference BMS inventory for VNC-capable devices.

Investigations & Audits

  • Murus Portae (WAF) — Phase 0 discovery in progress. FMC cert expired. d001: DMZ NetScaler WAF investigation, zone map, architecture D2 diagrams (v1+v2 SVGs), FMC REST API reference guide, ops script. FMC API returning zero ACP rules — under investigation.

  • Firewall audit — FMC discovery inventory done (d001: fmc-discovery-2026-04-16). EtherChannel query, prefilter, policy assignments pending.

  • IoT Dr. Kim devices — RECURRING. All 4 MACs validated in IoT_iPSK_VLAN1620_Misc (04-24). v2 validation queries built with 7 deep analysis queries (group flapping, credential leakage, profile drift, NAS tracking, remediation timeline, deny audit, OUI scan). Revalidate — confirm no flapping since 04-24.

  • IoT device validation queries — v2 created with partials architecture, 16 queries across ERS/MnT/DataConnect/FMC. Completed 2026-04-24.

Stale Blockers (carried via carryover tracker)

  • k3s NAT verification — rule 170, 10.42.0.0/16 pod network (origin: 2026-03-09). 92 days. Blocks Wazuh indexer recovery → blocks SIEM visibility. Decide: test or defer to Q3.

  • Strongline Gateway VLAN fix — 8 devices wrong identity group (origin: 2026-03-16). 85 days. David Rukiza assigned — follow up on status.

Administrative

  • PeopleSoft — track time for current week

  • iTrack tickets — close open tickets

  • KQL library — build initial queries in codex + d001

  • Linux Research project — finalize and review

  • Tax filing 2025 (MFJ) — see encrypted case file in data/d000/personal/ for details and action items

P1 — Important

  • MSCHAPv2 action-item tracker — owner/status/next-steps per workstream

  • ISE admin MFA enforcement — recommendation tied to advisory (interim control pending Patch 10)

  • DMZ Migration — external services audit behind NetScaler. Linked to Murus Portae investigation.

  • Vocera/Wyse iTrack RCA — complete root cause report

  • GCC ISE Support — 3/4 nodes restored, PSN-04 deferred

  • Wazuh indexer recovery — blocked by k3s NAT (origin: 2026-03-09)

  • Vocera EAP-TLS Supplicant Fix (origin: 2026-03-12)

  • iPSK Manager HA — blocked by DB replication (Ben Castillo)

  • ISE 3.4 Migration — depends on Patch 10 completion first

  • Git history scrub — murus-portae-output.md + ise-analytics CSVs

  • Encrypt prep-cmds-2026-04-15.adoc — plaintext committed to git

  • ISE MnT Messaging Service — enable UDP syslog delivery (maintenance window needed)

Infrastructure (Personal)

  • Borg backups — test and validate on ALL systems (Razer, P16g, vault-01, bind-01, kvm-01, kvm-02)

  • Borg — verify backup script paths updated from dotfiles-optimus to dots-quantum

  • Borg — create initial archive for ThinkPad P16g if none exists

  • Libvirt VLAN hook debug on both KVMs

  • Te1/0/2 cable replacement and re-test

  • Vault Raft cluster — verify vault-01 rejoined

  • Fix EAP-TLS keyring/secrets issue on Razer workstation

Completed (confirmed — do not delete, archive only)

  • CR-2026-04-15 SRT Research VLAN — submitted to iTrack. Completed 2026-04-15.

  • CAB presentation 4/21 — SRT Research VLAN 233 → CHLA-Research. APPROVED. Completed 2026-04-21.

  • Downtime Computers wireless audit — 45 computers, 16 violating, v3 report delivered. Completed 2026-04-21.

  • Git identity fix — dots-quantum/git/.gitconfig email corrected. Completed 2026-04-21.

  • MSCHAPv2 10:30 meeting — next steps + ACL coordination. Completed 2026-04-17.

Service Requests (SR)

SR# Request Requestor Opened Status

3508542

Zoll cards connection issue

STALE — verify in iTrack

3508524

Disable dot1x on (2) network ports - 5th floor 3250 Wilshire (PXE-boot imaging issues)

STALE — verify in iTrack (issues persisted after disable)

3528165

Tube System Upgrade — 15 stations, MAC addresses for ISE IoT_Onboard identity group

Genest, John (vendor contact)

2026-06-01

NEW — MACs received, need ISE onboarding

Incidents (INC)

INC# Priority Description Opened SLA Status

1911859

Strongline Gateways in Miscellaneous Subnet

STALE — verify in iTrack (related to carryover P0)

Change Requests - Emergency (ECAB)

CR# Description Opened Scheduled Status

No emergency changes

Change Requests - Normal

CR# Description Opened Scheduled Status

No normal changes

Change Requests - Scheduled/Standard

CR# Description Opened Window Status

No scheduled changes

Change Requests - Root Cause / Post-Incident

CR# Description Related INC Opened Status

100451

Vocera Phones and Wyse devices went off network

STALE — verify in iTrack


Session Accomplishments

SIEM Pipeline — Monad ETL

  • Discovered Monad v2 output_type field — broke false "constraint #10", renamed all 5 outputs via API

  • Proved node slugs are mutable — renamed 3 slugs via pipeline PATCH (metadata-only bypasses billing validator)

  • Bulk renamed 8 edges in single PATCH

  • Discovered 20 transform operations in OpenAPI schema (not 3) — jq, rename_key, drop_record_where_value_eq, encrypt, mask, mutate_value, convert_timestamp, etc.

  • Created SaaS pipeline (Mind DLP) — 5 nodes, hot/cold architecture, deployed and running

  • Created hot-sentinel-dlp output via v2 POST

  • Deleted 4 stale inputs (cisco-asa-vpn-lab, fmc-syslog-workaround, ise-lab, okta-system-logs)

  • Created 4 new transforms: dlp-event-extract (8 ops), dlp-cold-extract (5 ops), ise-cold-extract (7 ops), general-extract (5 ops)

  • Designed v3 syslog pipeline — ISE three-tier routing on app-name (29 categories from MessageCatalog.csv), hostname-independent for production personas (ppan, span, pmnt, smnt, psn-*)

  • ISE duplication identified and fixed in v3 design — auth/accounting were using identical conditions

  • Switch leak into catch-all identified and fixed in v3 design — added to NOR exclusion

  • ASA VPN + ACL routing to discarded identified — fixed in v3 to hot-sentinel-perimeter

  • Tested shared-input deviation — proved inputs are exclusive (constraint #12), documented and closed

  • Confirmed Sentinel pricing: $4.30/GB pay-as-you-go — updated team presentation diagram

  • Pipeline graph audit — full node→output mapping, per-node throughput analysis (Windows 55.6%, ISE 27.8%, catch-all 16.6%)

  • Updated Graphviz diagrams: pipeline-current.dot and pipeline-future.dot with new naming

  • SIEM file inventory created — 28 files across 7 categories documented

  • Adopted file-first JSON API pattern — all payloads to /tmp files, no inline JSON

  • Constraint list expanded to 12 (from 9)

Abnormal Security — CR + Expansion

  • Drafted CR for pilot group expansion: Abnormal-Pilot-Users@chla.usc.edu (21 members) → server team (Wed) → all IS (Thu)

  • iTrack fields, dispositio elevator pitch, RACI with task assignments per team member

  • Pre-change enumeration: groups, members, transport rules, anti-spam, safe links, safe attachments → JSON export

  • Architecture diagram (cr-expansion-architecture.dot) — single security group scopes all 4 policies

  • Rollback plan with all 21 original pilot members hardcoded

  • Team concerns addressed from meeting transcript (William, Carlos, Mauricio, Dr. Kiefer/McGuire)

  • Job aid status tracked — Alex drafts → executive review → distribute

  • Communication plan — who, when, what message per phase

  • Personal PowerShell analysis commands — enumeration, validation, post-change snapshot, Abnormal API queries

  • Standalone CR assembler built to HTML (304K)

TCP Clocks

  • Clock down reported by Chris Maubery — read screenshot directly (no OCR needed), extracted IP 10.238.69.248, MAC 40:AC:8D:00:93:EC

  • Assessed: device/application issue, not network/ISE — clock has valid IP, minimal TX/RX (14 KB)

  • ISE triage commands documented for future clock issues

  • Tesseract OCR commands documented (rotate-first pattern for angled screenshots)

  • DataConnect profile check pending — run Step 2c on work ISE tomorrow

Claroty API

  • Unified API reference built in d000: assembler + 5 partials, claroty() helper function

  • Credentials stored in dsec: d001 dev/network/claroty (separate blast radius from ISE)

  • TODO: fill real API key at work tomorrow, test first API call

Secrets Management

  • Claroty API credentials added to dsec tier — separate env file per system pattern

  • Masked verification pattern documented: env | grep -i SYSTEM | sed 's/=./=*/'

PowerShell Profile

  • $PROFILE template created with custom prompt, Exchange Online connect (exo), abnormal-audit function, abnormal-snapshot export, group management functions, anti-spam quick check

  • WSL ↔ PowerShell bridge patterns documented

CLI Patterns Learned

  • File-first JSON payloads: echo '{}' > /tmp/file.json && curl -d @file — eliminates terminal line-wrap

  • jq '{nodes: (.nodes | length), edges: (.edges | length)}' — object output instead of comma-separated

  • find -mtime 0 and find -mmin -10 — locate recently modified files

  • magick not convert on Arch for ImageMagick

  • nvim motions: yypci" for JSON editing, yi- for AsciiDoc delimited blocks, 13jA+backspace for trailing comma fix


Personal

In Progress

Project Description Status Notes

k3s Platform

Production k3s cluster on kvm-01

Active

Prometheus, Grafana, Wazuh deployed

Wazuh Archives

Enable archives indexing in Filebeat

Active

PVC fix pending

kvm-02 Hardware

Supermicro B deployment

Active

Hardware ready, RAM upgrade done

Planned

Project Description Target Blocked By

Vault HA (3-node)

vault-02, vault-03 on kvm-02

Q2 2026 (slipped from Q1)

kvm-02 deployment

k3s HA (3-node)

Control plane HA

Q2 2026 (slipped from Q1)

kvm-02 deployment

ArgoCD GitOps

k3s GitOps deployment

After k3s stable

 — 

MinIO S3

Object storage for k3s

After ArgoCD

 — 

Domus Inventory

Personal asset management (YAML + CLI + AsciiDoc)

Q2 2026

Schema approved

Active — Infrastructure

Task Details Priority Status Due

Wazuh agent deployment

Deploy agents to all infrastructure hosts

P2

Pending

After archives fix

k3s Platform

Production k3s cluster on kvm-01

P1

In Progress

 — 

Wazuh Archives

Enable archives indexing in Filebeat, PVC fix

P1

In Progress

 — 

kvm-02 Hardware

Supermicro B deployment, RAM upgrade done

P1

In Progress

 — 


Active — Security & Encryption

Task Details Priority Status Due

Configure 4th YubiKey

SSH FIDO2 keys

P1

TODO

 — 

Cold storage M-DISC backup

age-encrypted archives

P1

TODO

After YubiKey setup


Active — Development & Tools

Task Details Priority Status Due

netapi Commercialization

Go CLI rewrite with Cobra-style argument discovery, package for distribution

P0

Active

 — 

Ollama API Service

FastAPI (17 endpoints), productize — config audit, doc tools, runbook gen

P0

Active

 — 

Shell functions (fe, fec, fef)

File hunting helpers

P3

TODO

 — 


Active — Documentation

Task Details Priority Status Due

D2 Catppuccin Mocha styling

domus-* spoke repos (177 files total)

P3

In Progress

 — 


Active — Financial

Task Details Priority Status Due

Amazon order history import

Download CSV from Privacy Central → parse with awk → populate subscriptions tracker

P1

Waiting

Pending Amazon data export (requested 2026-04-04)


Active — Education

Task Details Priority Status Due

No active education tasks — see education trackers


Active — Personal & Life Admin

Task Details Priority Status Due

ThinkPad T16g Setup

Arch install, stow dotfiles, Ollama stack, netapi dev env

P0

Pending

 — 

P50 Arch to Ubuntu migration

CR-2026-03-12

P2

In Progress

 — 

X1 Carbon Ubuntu installs

2 laptops, LUKS encryption

P2

In Progress

 — 

P50 Steam Test

Test Flatpak Steam + apt cleanup of broken i386 packages

P3

Pending

 — 

Documentation Sites

Notes

Day-specific personal notes here.


Education

Claude Code Mastery

Resource Details Progress Status

Claude Code Full Course (4 hrs)

Nick Saraev - YouTube comprehensive course

26:49 / 4:00:00

IN PROGRESS

Claude Code Certification

Anthropic official certification (newly released)

Not started

GOAL

Skills Mastery (Critical)

Certification Deadlines

  • CISSP - July 12, 2026 (10-week plan active — Week 1)

  • RHCSA 9 - Q3 2026 (after CISSP)

  • LPIC-1 - Renewal required (blocks LPIC-2)

Spanish C1 Certification Goals

Certification Provider Target Status Strategy

SIELE C1

Instituto Cervantes / UNAM / Salamanca

Q2 2026

ACTIVE

Computer-based, faster results - take FIRST

DELE C1

Instituto Cervantes

Q3/Q4 2026

PLANNED

After SIELE success, harder exam

DELE C2

Instituto Cervantes

2027

FUTURE

Mastery level - requires extensive immersion

SIELE is computer-adaptive, results in 3 weeks. DELE is paper-based, results in 3-4 months. Do SIELE first to validate readiness.

Don Quijote Writing Practice - DELE C1/C2 Initiative

Method:

  1. Read chapter in original Spanish

  2. Write personal analysis/understanding en espanol

  3. AI review for grammar, vocabulary, register

  4. Build comprehensive understanding of literary elements

Today’s Study

  • Focus: CISSP (41 days to July 12 exam — schedule exam today 06-01), MSCHAPv2 migration wrap-up

  • Secondary: RHCSA curriculum, Spanish SIELE C1

  • CISSP — Security & Risk Management (continuing). Schedule exam this afternoon.

  • RHCSA — continue curriculum phase

  • Spanish — Don Quijote reading + analysis (DTLA study day)

  • MSCHAPv2 — migration window closed 05-30, review final report

Regex Training (CRITICAL)

  • Status: 52 days carried over (since 2026-03-16)

  • Priority: After PeopleSoft, before Quijote

  • Session: Character classes, word boundaries


Infrastructure

Documentation Sites

Site URL Status Actions Needed

Domus Digitalis

docs.domusdigitalis.dev

Active

Validate, harden, improve

Architectus

docs.architectus.dev

Active

Public portfolio site - maintain

HA Deployment Status

System Description Status Notes

VyOS HA

vyos-01 (kvm-01) + vyos-02 (kvm-02) with VRRP VIP

✅ COMPLETE

2026-03-07 - pfSense decommissioned

BIND DNS HA

bind-01 (kvm-01) + bind-02 (kvm-02) with AXFR

✅ COMPLETE

Zone transfer operational

Vault HA

Raft cluster (vault-01/02/03)

✅ COMPLETE

Integrated with PKI

Keycloak Rebuild

keycloak-01 corrupted, rebuild from scratch

🔄 NEXT

Priority P3 - SSO broken

FreeIPA HA

ipa-02 replica planned

📋 PLANNED

Linux auth redundancy

AD DC HA

home-dc02 replication

📋 PLANNED

Windows auth redundancy

iPSK Manager HA

ipsk-mgr-02 with MySQL replication

📋 PLANNED

PSK portal redundancy

ISE HA

PAN HA (ise-01 reconfigure)

⏳ DEFERRED

Wait until ise-02 stable

ISE 3.5 Migration

Upgrade path: 3.2p9 → 3.4 (P1) → 3.5 (target)

📋 PLANNED

After 3.4 Migration completes (Q2 2026)

Single Points of Failure (CRITICAL)

These systems have NO redundancy - outage impacts production.
System Impact if Down Mitigation

ISE (ise-02)

All 802.1X stops - wired and wireless auth fails

ise-01 reconfiguration deferred until ise-02 stable

Keycloak (keycloak-01)

SAML/OIDC SSO broken (ISE admin, Grafana, etc.)

NEXT PRIORITY - Rebuild runbook

FreeIPA (ipa-01)

Linux auth, sudo rules, HBAC fails

ipa-02 replica planned

AD DC (home-dc01)

Windows auth, Kerberos, GPO fails

home-dc02 replica planned

iPSK Manager

Self-service PSK portal unavailable

ipsk-mgr-02 with MySQL replication planned

Validation Tasks

Task Details Status

docs.domusdigitalis.dev validation

Test all cross-references, search, rendering

TODO

docs.domusdigitalis.dev hardening

HTTPS, CSP headers, security review

TODO

docs.architectus.dev validation

Public site content review

TODO

Hub-spoke sync verification

All components building correctly

Ongoing


Quick Commands

Git & GitHub CLI

create GitHub repo from existing local repo
gh repo create <name> --private --source . --remote origin --push
clone a forked repo into a specific directory
gh repo clone EvanusModestus/PowerShell ~/atelier/_projects/work/PowerShell
gh repo clone defaults to SSH. If key is passphrase-protected, load agent first: eval "$(ssh-agent -s)" && ssh-add ~/.ssh/id_ed25519_github
cross-repo commit search — all domus repos on a specific date
for repo in ~/atelier/_bibliotheca/domus-*/ ~/atelier/_projects/personal/domus-*/; do
  [ -d "$repo/.git" ] || continue
  name=$(basename "$repo")
  git -C "$repo" log --since="2026-04-06" --until="2026-04-07" --format="%h %aI %s" 2>/dev/null |
    awk -v r="$name" '{print r, $0}'
done
commit history touching only today’s modified files
git log --oneline -- $(find . -name "*.adoc" -type f -newermt "$(date +%F)")
unstage a file without losing changes
git restore --staged data/d001/api/ise-dataconnect/output/output-2026-04-24

Safe — removes from staging area only. Working tree is untouched. Use when you accidentally git add a plaintext or output file.

gh CLI — repo discovery and filtering

list repos by name pattern (domus/antora ecosystem)
gh repo list --limit 100 --json name,description \
  | jq -r '.[] | select(.name | test("domus|antora|asciidoc"; "i")) | "\(.name)\t\(.description)"'
top 20 most recently updated repos
gh repo list --limit 100 --json name,description,updatedAt \
  | jq -r 'sort_by(.updatedAt) | reverse | .[:20] | .[] | "\(.updatedAt[:10])\t\(.name)\t\(.description)"'
top 10 repos by disk usage
gh repo list --limit 100 --json name,diskUsage \
  | jq -r '.[] | "\(.diskUsage)\t\(.name)"' | sort -rn | head -10
clone a repo that’s not local yet
gh repo clone EvanusModestus/<repo-name> ~/atelier/_bibliotheca/<repo-name>

find & grep

files modified since midnight today (precise — not "last 24 hours")
find . -name "*.adoc" -type f -newermt "$(date +%F)" | sort
-mtime 0 means "last 24 hours", not "today". -newermt "$(date +%F)" compares against midnight — exact.
case-insensitive file search
find . -iname "*mschap*" -type f | sort
multiple name patterns with -o
find . -type f \( -iname "*ise*" -o -iname "*mschap*" \) | sort
same thing, single regex — fewer parens, extensible
find . -type f -iregex '.*\(ise\|mschap\).*'
exclude directories
find . -type f -iname "*meeting*" \
  -not -path "*/node_modules/*" \
  -not -path "*/.git/*" \
  -not -path "*/build/*"
recent drafts by modification time (newest first)
find .drafts -type f -printf '%T@ %Tc %p\n' | sort -rn | awk '{$1="";print}' | head -3
grep — know what you’re counting
grep -rl "pattern" . --include="*.adoc"         # file count (which files)
grep -rn "pattern" . --include="*.adoc"         # line matches (every occurrence)
grep -rc "pattern" . --include="*.adoc" | grep -v ':0$'  # match count per file
search with context — avoid opening the file
grep -rn -E 'git init|gh repo create' docs/ --include='*.adoc' -B2 -A2

Search codex by content — which files contain a command?

find all PowerShell files that use a specific cmdlet
find docs/modules/ROOT/examples/codex/powershell -type f -name "*.adoc" \
  -exec grep -l 'Get-Process\|Start-Process\|pipeline\|Where-Object' {} \;

Pattern: find -exec grep -l returns only filenames with matches — like grep -rl but with find’s `-type f -name filtering. Use \| for OR in grep basic regex. Swap the pattern for any cmdlet or keyword to locate coverage across the codex.

inventory a codex tool directory — count files per tier
find docs/modules/ROOT -name "powershell" -type d \
  -exec sh -c 'echo "$1: $(find "$1" -type f | wc -l) files"' _ {} \;
find orphaned examples (not included by any page)
for f in $(find docs/modules/ROOT/examples/codex/powershell -name "*.adoc" -type f); do
  base=$(basename "$f")
  dir_parent=$(basename $(dirname "$f"))
  grep -rq "$dir_parent/$base" docs/modules/ROOT/pages/codex/powershell/ \
    docs/modules/ROOT/examples/codex/powershell/*.adoc 2>/dev/null \
    || echo "ORPHAN: $f"
done

find → grep → open in nvim

find by path + content, open result in nvim
nvim $(find -path '*oauth*' -name '*.adoc' -type f \
  -exec grep -l 'timeout\|expire\|reconfig\|token' {} \;)

Command substitution $(…​) feeds all matches as arguments to nvim — opens every hit as a buffer. :bn/:bp to cycle, :ls to list. One file? Opens directly. Five files? All loaded, ready to navigate.

find by content across entire tree, open in nvim
nvim $(find docs/modules/ROOT -name '*.adoc' -type f \
  -exec grep -l 'token.*expire\|oauth.*refresh' {} \;)
open one at a time (sequential — -exec nvim per match)
find -path '*oauth*' -name '*.adoc' -type f \
  -exec grep -l 'timeout\|expire' {} \; \
  -exec nvim {} \;
Trailing \| in grep patterns matches empty string — every file matches. Always end with a term, not a pipe: 'timeout\|expire\|token' not 'timeout\|expire\|token\|'.

Trace Antora partial inclusion chains

who includes this partial? (one level up)
grep -rl 'commands/shell' docs/modules/ROOT/partials/
count all pages that include a partial
grep -rl 'quick-commands' docs/modules/ROOT | wc -l
full chain: partial → assembler → every page that uses it
file="commands/shell"
grep -rl "$file" docs/modules/ROOT/partials/ | while read f; do
  parent=$(basename "$f" .adoc)
  echo "$file -> $parent"
  grep -rl "$parent" docs/modules/ROOT/pages/ | while read p; do
    echo "  -> $(basename "$p")"
  done
done

Pattern: grep -rl finds which files contain the string. Chain two passes — first finds the assembler partial, second finds every page that includes it. Works for any partial in the Antora include hierarchy.

Multi-pattern file search — worklog partial discovery

brute force — one find per partial name
find docs/modules/ROOT -name "*urgent.adoc*" -type f
find docs/modules/ROOT -name "*morning.adoc*" -type f
consolidated — single find with regex (production approach)
find docs/modules/ROOT -type f -regextype posix-extended \
  -regex '.*(urgent|morning|work-chla|personal|education|infrastructure|quick-commands|related)\.adoc' \
  | sort

Pattern: -regextype posix-extended enables | alternation without escaping. One process, one sort — versus 8 separate finds. The sort deduplicates visually and groups by path.

pipeline alternative — find piped to grep
find docs/modules/ROOT -type f -name "*.adoc" \
  | grep -E 'urgent|morning|work-chla|personal|education|infrastructure|quick-commands|related'

Trade-off: the pipeline version is more readable but spawns two processes. The regex version is a single find — faster on large trees, same result.

Cross-repo literary term search — bibliotheca-wide discovery

When searching for a term across the entire _bibliotheca (multiple repos, mixed file types), these patterns escalate from narrow to broad.

1. Single repo — count matches per file
grep -rn --include='*.adoc' -c 'sanchuelo' . | grep -v ':0$'
2. Cross-repo — filenames only (all bibliotheca)
grep -rl --include='*.adoc' -i 'sanchuelo' ~/atelier/_bibliotheca/ | sort
3. Cross-repo with context — see the line in situ
grep -rn --include='*.adoc' -i -B1 -A1 'sanchuelo' ~/atelier/_bibliotheca/domus-captures/
4. Multi-filetype — .adoc + .txt (catches source texts)
grep -rl -i 'sanchuelo' ~/atelier/_bibliotheca/ --include='*.txt' --include='*.adoc' | sort
5. Null-safe find + xargs — handles spaces in paths
find ~/atelier/_bibliotheca/ -type f \( -name '*.adoc' -o -name '*.txt' \) -print0 \
  | xargs -0 grep -li 'sanchuelo' | sort
6. Open all hits directly in nvim
grep -rl -i 'sanchuelo' ~/atelier/_bibliotheca/ --include='*.adoc' --include='*.txt' | xargs nvim

Pattern escalation: #1 confirms the term exists and where. #2 expands to all repos. #3 shows context without opening files. #4 adds plain text sources (Quijote .txt originals). #5 is the safe version for automation. #6 opens everything for editing.

Trade-off: grep -r --include is faster for known file types. find | xargs grep is safer for paths with spaces and more extensible (add -name '*.md' etc.). For literary searches across the bibliotheca, #4 or #5 is usually the right starting point — the source texts are .txt, not .adoc.

Search daily notes — find commands, builds, and patterns across worklogs

Source: 2026-06-22 — searching for build-antora-page invocations and theme usage across partials

which daily note partials mention a command?
# Find files — filenames only
grep -rl 'build-antora-page' docs/modules/ROOT/partials/worklog/
see the match in context without opening the file
# 3 lines of context around each hit
grep -rn -C3 'build-antora-page' docs/modules/ROOT/partials/worklog/
search for any theme flag across all partials (PCRE alternation)
grep -rPn 'theme\s+(light-cyan|catppuccin|mocha)' docs/modules/ROOT/partials/
find + grep — search all daily note partials for build/export patterns
find docs/modules/ROOT/partials/worklog/daily-notes -name '*.adoc' \
  -exec grep -l 'build-antora-page\|build-adoc\|--theme\|pdf' {} \;
find + awk — show filename:matching_line for every hit (no -r needed)
find docs/modules/ROOT/partials/worklog/daily-notes -name '*.adoc' \
  -exec awk '/build-antora-page|build-adoc|--theme/{print FILENAME": "$0}' {} \;
awk state machine — extract full [source,bash] blocks containing a command
find docs/modules/ROOT/partials -name '*.adoc' -exec \
  awk '/^\[source,bash\]/{block=1; buf=""} \
       block{buf=buf"\n"$0} \
       /^----$/ && block>1{if(buf~/build-antora-page/) print FILENAME":"buf; block=0} \
       block{block++}' {} \;

The awk state machine: [source,bash] sets block=1 and starts buffering. Each line appends to buf. When the closing ---- arrives (and block>1 to skip the opening fence), check if the buffer contains the target command. If yes, print filename + entire block. Reset. One pass, arbitrary block size, no temp files.

sed address range — print only lines between code fences matching a pattern
find docs/modules/ROOT/partials/worklog -name '*.adoc' -exec \
  sed -n '/\[source,bash\]/,/^----$/{/build-antora-page/p}' {} +
search data/ too — standalone adoc outside Antora
grep -rn 'build-antora-page\|build-adoc' data/ --include='*.adoc'
every invocation sorted by path (chronological by date directory)
grep -rn 'build-antora-page' docs/modules/ROOT/partials/worklog/daily-notes/ \
  | awk -F: '{print $1, $3}' | sort

Pattern escalation: grep -rl → "where is it". grep -rn -C3 → "what’s around it". find -exec awk → "extract the structured block". sed address ranges → "print between delimiters". Each tool has a different affordance — grep finds, awk extracts structure, sed filters ranges, find -exec scales across trees.

Email thread analysis — extract people, dates, commitments, silence

who’s in the thread (@ mentions + From headers)
grep -P '(@\w+|^From:.*<)' comms.adoc
timeline — every date with context
grep -nP '\d{1,2}/\d{1,2}/\d{2,4}|20\d{2}-\d{2}-\d{2}' comms.adoc
commitments — who promised what
grep -niP '(I can |I will |I.ll |we will |we.ll )' comms.adoc
open questions and unknowns
grep -niP '(\?|need to confirm|need to validate|TBD|pending)' comms.adoc

comm — set difference (who hasn’t replied)

# All recipients
grep -oP '<\K[^>]+' comms.adoc | sort -u > /tmp/all-recipients

# All senders
grep -P '^From:' comms.adoc | grep -oP '<\K[^>]+' | sort -u > /tmp/replied

# Who's silent — follow-up targets
comm -23 /tmp/all-recipients /tmp/replied

comm -23 outputs lines only in file 1 (recipients not in senders). Requires sorted input. grep -oP '<\K[^>]+' uses PCRE lookbehind — match < but don’t include it, capture until >.

Sort find results by modification time (newest first)

find discovers files but has no sort. Chain -printf with sort to order by mtime.

awk '{print $2}' truncates filenames with spaces — Familia Romana_ Lingva…​ becomes Familia. Always use the null-safe or sub() variants below for real data.
epoch sort — space-safe (production version)
# Sort by mtime, strip epoch prefix — handles spaces in filenames
find ~/Downloads -maxdepth 1 -name '*.pdf' -printf '%T@ %p\n' | sort -rn | awk '{sub(/^[^ ]+ /,""); print}'

sub(/[ ]+ /,"") removes everything up to and including the first space (the epoch). {print $2} would split on every space — fatal for Familia Romana_ Lingva Latina.

human-readable timestamps alongside
# ISO 8601 timestamps — readable and lexicographically sortable
find ~/Downloads -maxdepth 1 -name '*.pdf' -printf '%T+ %p\n' | sort -r | head -20

%T+ renders YYYY-MM-DD+HH:MM:SS — no epoch math needed, still sorts correctly as text.

null-safe — the bulletproof version
# Null-delimited: survives any filename (newlines, quotes, unicode)
find ~/Downloads -maxdepth 1 -name '*.pdf' -printf '%T@\t%p\0' | sort -zrn | awk -v RS='\0' -F'\t' '{print $2}'

-printf '%T@\t%p\0' — tab separates epoch from path, null terminates. sort -z sorts null-delimited records. awk -v RS='\0' -F'\t' reads null-terminated, splits on tab — $2 is now the full path regardless of spaces.

stat fallback — portable (BSD/macOS)
# GNU stat equivalent — works where -printf is unavailable
find ~/Downloads -maxdepth 1 -name '*latin*' -exec stat --format='%Y %n' {} + | sort -rn | awk '{sub(/^[^ ]+ /,""); print}'

-exec …​ {} + batches all files into one stat call (faster than \;). On macOS, use stat -f '%m %N' instead of --format='%Y %n'.

File intelligence — size, type, duplicates, age

Beyond finding files — interrogating them.

top 10 largest files in a directory tree
# Size in bytes (-printf %s), human-readable via numfmt
find ~/Downloads -type f -printf '%s\t%p\n' | sort -rn | head -10 | numfmt --to=iec --field=1

numfmt --to=iec --field=1 converts the first field from bytes to K/M/G. sort -rn on raw bytes is exact — ls -lhS rounds and sometimes mis-sorts.

find duplicates by size (fast pre-filter before checksumming)
# Files sharing a byte count — likely duplicates (confirm with md5sum)
find ~/Downloads -type f -printf '%s %p\n' | awk '{seen[$1]++; files[$1]=files[$1] "\n  " $0} END {for (s in seen) if (seen[s]>1) print files[s]}'
find duplicates by content — definitive
# md5sum only files with duplicate sizes (two-pass: fast then precise)
find ~/Downloads -type f -printf '%s\n' | sort | uniq -d | while read -r size; do
  find ~/Downloads -type f -size "${size}c" -exec md5sum {} +
done | sort | uniq -w32 -D

Two-pass: first find duplicate sizes (cheap), then md5sum only those (expensive). uniq -w32 -D compares first 32 chars (the hash) and prints all duplicates.

file type census — what’s actually in this directory?
# Count files by MIME type (not extension — extensions lie)
find ~/Downloads -type f -exec file --mime-type -b {} + | sort | uniq -c | sort -rn

file --mime-type -b reports actual content type. -b suppresses filename. A .pdf that’s really text/html is a failed download.

stale files — untouched for 30+ days
# Files not accessed in 30 days — candidates for cleanup
find ~/Downloads -maxdepth 1 -type f -atime +30 -printf '%A+ %s\t%p\n' | sort | numfmt --to=iec --field=2

-atime 30` = access time older than 30 days. `-printf '%A' shows last access. Useful for Downloads cleanup without deleting something you just renamed.

disk usage by subdirectory — sorted
# Which subdirectories consume the most space?
find . -maxdepth 1 -type d -exec du -sh {} + 2>/dev/null | sort -rh | head -20

Batch operations — rename, move, transform

rename all files — strip spaces, lowercase, normalize unicode
# Dry run — show what would change (remove echo to execute)
find ~/Downloads -maxdepth 1 -type f -name '* *' -print0 | while IFS= read -r -d '' f; do
  dir=$(dirname "$f")
  base=$(basename "$f" | tr ' ' '-' | tr '[:upper:]' '[:lower:]')
  echo mv "$f" "$dir/$base"
done

IFS= read -r -d '' — the holy trinity for null-safe filename reading. IFS= prevents whitespace trimming. -r prevents backslash interpretation. -d '' reads until null.

move files by extension into categorized subdirectories
# Sort Downloads chaos into folders by type
find ~/Downloads -maxdepth 1 -type f -print0 | while IFS= read -r -d '' f; do
  ext="${f##*.}"
  case "$ext" in
    pdf|epub)    dest="books" ;;
    jpg|png|svg) dest="images" ;;
    sh|py|rb)    dest="scripts" ;;
    *)           dest="other" ;;
  esac
  mkdir -p ~/Downloads/"$dest"
  echo mv "$f" ~/Downloads/"$dest"/
done

${f##.} — parameter expansion: strip longest match of . from front, leaving only the extension. No basename or awk needed.

batch convert epub → asciidoc (like your Cicero fetch script)
# Convert all epubs in a directory to asciidoc via pandoc
find . -name '*.epub' -type f -exec sh -c '
  for epub; do
    adoc="${epub%.epub}.adoc"
    pandoc -f epub -t asciidoc "$epub" -o "$adoc" \
      && printf "  → %s (%s lines)\n" "$adoc" "$(wc -l < "$adoc")" \
      || printf "  ✗ failed: %s\n" "$epub"
  done
' _ {} +

-exec sh -c '…​' _ {} + — batch mode. _ fills $0 (script name, discarded). All matched files become $1, $2, …​ iterated by for epub. One sh invocation, not one per file.

xargs power patterns

parallel processing — 4 cores
# Checksum all PDFs in parallel (4 processes)
find ~/Downloads -name '*.pdf' -print0 | xargs -0 -P4 md5sum

-P4 runs 4 md5sum processes simultaneously. -print0 | xargs -0 is the null-safe pipeline — no filename can break it.

batched execution — two arguments at a time
# Compare files pairwise with diff
find . -name '*.adoc' -print0 | xargs -0 -n2 diff --brief

-n2 feeds two arguments per invocation. Useful for pairwise comparisons, copy operations (-n2 with cp), or any command taking exactly two args.

placeholder — insert filename at specific position
# Backup every config file: cp <file> <file>.bak
find /etc -maxdepth 1 -name '*.conf' -print0 | xargs -0 -I{} cp {} {}.bak

-I{} replaces {} with each filename. Slower than + batching (one cp per file) but necessary when the filename must appear in a specific position.

Process substitution — diff without temp files

compare two directory listings
# What files exist in study-A but not study-B?
diff <(find data/d000/education/ciceron-study -type f -name '*.adoc' | sort) \
     <(find data/d000/education/latin-study -type f -name '*.adoc' | sort)

<(cmd) creates a file descriptor from command output. diff sees two "files" — no temp files created, no cleanup needed.

compare file counts across directories
# Side-by-side: file type census of two directories
paste <(find dir1 -type f -exec file --mime-type -b {} + | sort | uniq -c | sort -rn) \
      <(find dir2 -type f -exec file --mime-type -b {} + | sort | uniq -c | sort -rn)

awk, sed, jq

awk — field extraction

print second field (whitespace-delimited)
awk '{print $2}' file.txt
custom delimiter — colon-separated (like /etc/passwd)
awk -F: '{print $1, $3}' /etc/passwd
extract JSON code blocks from AsciiDoc
awk '/\[source,json\]/{getline; if ($0 ~ /^----/) {p=1; next}} p && /^----/{p=0; next} p' file.adoc
field extraction with printf formatting
awk '{printf "%-30s %s\n", $1, $2}' file.txt

sed — stream editing

in-place replacement with verify-before/after
# Before
awk 'NR==73' /etc/ssh/sshd_config
# Change
sed -i '73s/#GSSAPIAuthentication no/GSSAPIAuthentication yes/' /etc/ssh/sshd_config
# After
awk 'NR==73' /etc/ssh/sshd_config
extract line range
sed -n '10,20p' file.txt

sed — line-targeted replacement (verify-before / change / verify-after)

the full pattern: locate → validate → change → verify
# 1. LOCATE: find the line number
grep -n 'adoc-pdf' zsh/.zshrc

# 2. VALIDATE: read the exact line before changing
awk 'NR==1760' zsh/.zshrc

# 3. CHANGE: target by line number — only hits that line
sed -i '1760s/alias adoc-pdf=/alias build-adoc=/' zsh/.zshrc

# 4. VERIFY: confirm change AND check for collateral
grep -n 'build-adoc\|adoc-pdf' zsh/.zshrc

Without the line number prefix (1760s/), sed replaces every match in the file — a shotgun. With it, surgical. The line number comes from grep -n.

multi-line verify — check two specific lines at once
awk 'NR==1218 || NR==1760' zsh/.zshrc
range extraction — NR for surgical reads from large files
# grep found the error at line 44164 — read 50 lines of context
awk 'NR>=44160 && NR<=44210' session-dump.adoc

No head | tail chains. No sed -n '44160,44210p'. One awk, two numbers.

grep -oP with \K — value extraction from key-value logs

extract just the value after a key (Perl regex)
# ISE syslog — extract failure reasons
grep -oP 'FailureReason=\K[^,;]+' /var/log/syslog | sort | uniq -c | sort -rn

# ISE — extract MAC addresses
grep -oP 'Calling-Station-ID=\K[0-9A-Fa-f:.-]+' /var/log/syslog | sort -u

# ISE — extract NAS IPs
grep -oP 'NAS-IP-Address=\K[0-9.]+' /var/log/syslog | sort -u

# ISE — extract device names
grep -oP 'NetworkDeviceName=\K[^,;]+' /var/log/syslog | sort -u

\K resets the match start — everything before \K is required context but excluded from output. [^,;]+ captures until the next delimiter. Pipe to sort -u for unique, sort | uniq -c | sort -rn for counted frequency.

pattern: grep -oP 'KEY=\KVALUE_REGEX' | sort pipeline
# Generic form — works for any key=value log format
grep -oP 'FIELD_NAME=\K[^,;]+' logfile | sort | uniq -c | sort -rn | head -20

jq — JSON processing

extract nested fields
curl -s localhost:8080/stats | jq '.stats.total_files'
filter array by property
jq '.results[] | select(.category == "standards")' response.json
transform to TSV for spreadsheets
jq -r '.[] | [.title, .path] | @tsv' response.json | column -t -s $'\t'
GitHub API + jq — commit history by path
gh api "repos/EvanusModestus/domus-captures/commits?path=docs/&per_page=10" |
  jq -r '.[] | "\(.commit.author.date[:10]) \(.sha[:7]) \(.commit.message | split("\n")[0])"'

Shell Patterns

xargs — when the next command reads arguments, not stdin

Next command reads…​ Use

stdin (awk, grep, wc, sort)

pipe directly

arguments (stat, rm, cp, nvim, git add)

xargs

copy today’s files to backup — -I{} placeholder
mkdir -p /tmp/adoc-backup-$(date +%F) && \
  find . -name "*.adoc" -type f -newermt "$(date +%F)" | \
  xargs -I{} cp {} /tmp/adoc-backup-$(date +%F)/
parallel validation — -P4 runs 4 at a time
find .drafts -name "*.adoc" -type f | xargs -P4 -I{} asciidoctor -o /dev/null {}
null-delimited pipeline — safe for filenames with spaces
find . -name "*.adoc" -type f -print0 | xargs -0 wc -l

Process substitution — <(cmd) treats output as a file

compare tracker state: yesterday vs today
diff <(grep '|' partials/trackers/work/adhoc/carryover.adoc | head -20) \
     <(git show HEAD~1:partials/trackers/work/adhoc/carryover.adoc | grep '|' | head -20)
files on disk vs files in nav — drift detection
diff <(find docs/modules/ROOT/pages/projects/chla/mschapv2-migration -name "*.adoc" -type f | sort) \
     <(grep -oP 'mschapv2-migration/[^[]+\.adoc' docs/modules/ROOT/nav.adoc | sort)

Command substitution — embed output as arguments

open most recently modified file in nvim
nvim "$(find data/ -name '*.adoc' -type f -printf '%T@ %p\n' | sort -rn | awk 'NR==1{print $2}')"
line count across a project
wc -l $(find docs/modules/ROOT -path '*mschapv2*' -name '*.adoc' -type f)

Conditional execution — capture, test, act

open matching files only if they exist
files=$(find .drafts -name 'in*' -type f) && [ -n "$files" ] && nvim $files
open files that contain unchecked items
files=$(grep -rl '\[ \]' .drafts/*.adoc) && [ -n "$files" ] && nvim $files
guard with grep -q — only act if pattern matches
grep -q 'TODO\|FIXME\|\[ \]' "$file" && nvim "$file"

Pattern: $(capture)[ -n ] tests non-empty → && only proceeds if true. grep -q is the idempotent guard — run repeatedly, only opens when there’s work.

Decrypt and open — find .age, decrypt, nvim in one shot

files=$(find . -name "*tcp-clock*.age" -type f) && \
  [ -n "$files" ] && echo "$files" | xargs -I{} decrypt-file {} && \
  nvim $(echo "$files" | sed 's/\.age$//')

Pattern: find .age only (never tries plaintext), sed derives the decrypted path, guard prevents empty nvim. Change the glob to match any project.

tee_clean — color on screen, clean text in file

tee_clean() {
  tee >(sed 's/\x1b\[[0-9;]*m//g' > "$1")
}

# Color output on terminal, stripped in file
jq -C '.' data.json | tee_clean output.json
xq -C '.' data.xml | tee_clean output.json

# Wrap a whole block
{
  echo "=== Summary ==="
  jq -C '.[] | .name' data.json
} | tee_clean summary.txt

The >(cmd) is process substitution — tee writes to stdout AND to the subshell pipe. sed strips ANSI escape sequences (\x1b\[[0-9;]*m) before they hit the file.

Dependency check — verify toolchain in one shot

for cmd in asciidoctor asciidoctor-pdf pandoc rouge d2 mmdc age; do
  printf "%-20s %s\n" "$cmd" "$(command -v $cmd >/dev/null 2>&1 && echo 'OK' || echo 'MISSING')"
done

Pattern: command -v checks if binary exists on PATH. >/dev/null 2>&1 suppresses output — we only care about exit code. Swap the tool list for any project’s dependencies.

printf safety — dashes as data, not options

wrong — printf treats --- as invalid option
printf '---\n\n'
right — %s format string treats --- as data
printf '%s\n\n' '---'

Kill stuck SSH sessions

Find established SSH connections
lsof -i TCP -n -P | awk '/ssh.*ESTABLISHED/ {print $2, $9}'
Kill all stuck SSH sessions to a specific host
lsof -i TCP -n -P | awk '/ssh.*kvm-01.*ESTABLISHED/ {print $2}' | sort -u | xargs kill
Kill ALL stuck SSH sessions
lsof -i TCP -n -P | awk '/ssh.*ESTABLISHED/ {print $2}' | sort -u | xargs kill

lsof -i TCP -n -P lists all TCP connections. awk filters for SSH + ESTABLISHED, prints only the PID ($2). sort -u deduplicates (multiple file descriptors per process). xargs kill sends SIGTERM to each.

File Descriptors & Redirection

The three file descriptors

FD Name Purpose

0

stdin

input to the command

1

stdout

normal output (valid results)

2

stderr

error messages

Split stdout and stderr into separate files

find / -name "*.conf" 1>results.txt 2>errors.txt

Suppress errors — 2>/dev/null

find / -name "*.conf" 2>/dev/null

Merge stderr into stdout — 2>&1

command 2>&1 | grep "pattern"

This sends both stdout and stderr through the pipe. Without 2>&1, only stdout reaches grep — errors print to the terminal and bypass the pipeline.

Heredoc patterns

multi-line input to a command
cat <<'EOF'
Line 1
Line 2
EOF
heredoc commit messages (quotes prevent variable expansion)
git commit -m "$(cat <<'EOF'
feat: add new feature

Multi-line description here.
EOF
)"

API & curl/jq

domus-api — Documentation System REST API

start the API server
cd ~/atelier/_projects/personal/domus-api && uv run uvicorn domus_api.main:app --host 0.0.0.0 --port 8080
health check
curl -s localhost:8080/ | jq
full-text search
curl -s 'localhost:8080/search?q=mandiant' | jq
search — extract path, title, match count
curl -s 'localhost:8080/search?q=mandiant' | jq '.results[] | {path, title, match_count}'
list pages by category
curl -s 'localhost:8080/pages?category=standards' | jq
all antora.yml attributes
curl -s localhost:8080/attributes | jq

GitHub API

cross-repo search via GitHub API
gh search code "vault seal" --owner EvanusModestus --json repository,path,textMatches |
  jq '.[] | {repo: .repository.full_name, file: .path, match: .textMatches[].fragment}'
count .adoc files in a repo via API
gh api 'repos/EvanusModestus/domus-captures/git/trees/main?recursive=1' |
  jq '[.tree[] | select(.path | endswith(".adoc"))] | length'

Domus Workflows

Read content from terminal (meeting-ready)

today’s worklog
bat docs/modules/ROOT/pages/2026/04/WRKLOG-$(date +%Y-%m-%d).adoc
current priorities
bat docs/modules/ROOT/partials/trackers/work/priorities/current.adoc
carryover backlog
bat docs/modules/ROOT/partials/trackers/work/adhoc/carryover.adoc
any project summary
bat docs/modules/ROOT/partials/projects/mandiant-remediation/summary.adoc

Search and discovery

find all files related to a topic
grep -rl "MSCHAPv2" docs/modules/ROOT/ --include="*.adoc" | sort
search codex entries
grep -rn "pattern" docs/modules/ROOT/partials/codex/ --include="*.adoc" -B1 -A3
list all worklogs for a month
ls -1 docs/modules/ROOT/pages/2026/04/WRKLOG-*.adoc

Tracker aging — calculate days from origin

how many days since a carryover item started
echo $(( ($(date +%s) - $(date -d "2026-03-09" +%s)) / 86400 ))

Encrypted data access (d001)

view encrypted file without disk write
age --decrypt -i ~/.secrets/.metadata/keys/master.age.key \
  data/d001/projects/mandiant-remediation/findings-status-2026-04-16.adoc.age \
  | bat --language asciidoc
project encryption dashboard
for d in data/d001/projects/*/; do
  total=$(find "$d" -type f | wc -l)
  plain=$(find "$d" -type f ! -name '*.age' ! -name 'README.adoc' ! -name '.gitkeep' ! -name '*.py' | wc -l)
  printf "%-25s %s files  %s plaintext\n" "$(basename "$d")" "$total" "$plain"
done

d000 study builds

batch build all docs for a Quijote chapter range
for d in p1-cap-03{7,8,9}; do
  for f in data/d000/education/quijote-study/notas/$d/*.adoc; do
    d000 build "$d/$(basename "$f" .adoc)" html --variant light-cyan
  done
done
build a single study doc (use unique path fragment)
d000 build p1-cap-038/texto-anotado html --variant light-cyan
d000 build p1-cap-038/texto-anotado pdf --theme light-cyan
batch build PDFs for a chapter range
for d in p1-cap-03{7,8,9}; do
  for f in data/d000/education/quijote-study/notas/$d/*.adoc; do
    d000 build "$d/$(basename "$f" .adoc)" pdf --theme light-cyan
  done
done
open all rendered chapters at once
firefox data/d000/education/quijote-study/notas/p1-cap-03{7,8,9}/output/*.html &
firefox data/d000/education/quijote-study/notas/p1-cap-03{7,8,9}/output/*.pdf &
print chapter PDFs (requires CUPS configured)
lp data/d000/education/quijote-study/notas/p1-cap-03{7,8,9}/output/*.pdf
build LPL logic study (English / Spanish)
d000 build annotated-text pdf --theme light-cyan
d000 build lpl-study/notas/texto-anotado pdf --theme light-cyan
build Cicero study
d000 build de-oratore/libro-i/texto-anotado html --variant light-cyan

Available themes

PDF themes (--theme)
ls ~/atelier/_bibliotheca/domus-asciidoc-build/themes/pdf/ | sed 's/-theme\.yml//'
# base blue burgundy catppuccin creative dark don-quijote green
# learning light-cyan navy operations orange purple reference royal
HTML variants (--variant)
~/atelier/_bibliotheca/domus-asciidoc-build/docinfo/compose.sh --list
# light dark catppuccin royal light-cyan

ISE & Network Ops

ISE ERS API — endpoint CRUD

set credentials (session)
export ISE_HOST="{ise-ip}" ISE_USER="admin" ISE_PASS="$(gopass show -o ise/admin)"
list identity groups
curl -sk "https://$ISE_HOST:{ise-ers-port}/ers/config/identitygroup" \
  -H "Accept: application/json" -u "$ISE_USER:$ISE_PASS" | jq '.SearchResult.resources[].name'
check if endpoint exists by MAC
curl -sk "https://$ISE_HOST:{ise-ers-port}/ers/config/endpoint?filter=mac.EQ.AA:BB:CC:DD:EE:FF" \
  -H "Accept: application/json" -u "$ISE_USER:$ISE_PASS" | jq '.SearchResult.total'

Certificate inspection

view EAP-TLS client cert from local store
openssl x509 -in {cert-dir}/client.pem -text -noout | head -30
check cert expiry
openssl x509 -in {cert-dir}/client.pem -enddate -noout

Network diagnostics

check listening ports
ss -tlnp | grep -E ':{port-https}|:{port-ssh}|:{port-ldaps}'
test ISE connectivity
nc -zv {ise-ip} {ise-ers-port}
DNS resolution
dig {ise-hostname} +short

ISE eval rotation — backup & restore

backup from ISE CLI (when admin UI is license-locked)
# SSH to ISE
ssh admin@ise-02.inside.domusdigitalis.dev

# Verify NAS repo
show repository nas-01

# Get encryption key (on workstation)
dsource d000 dev/storage
echo $ISE_BACKUP_KEY

# Run backup
backup pre-rotation-2026-06 repository nas-01 ise-config encryption-key plain <KEY>
list backups on NAS
ssh admin@ise-02.inside.domusdigitalis.dev
show repository nas-01
restore to fresh ISE node
configure terminal
repository nas-01
  url nfs://10.50.1.70:/volume1/ise_backups
exit

restore <backup-filename> repository nas-01 encryption-key plain <KEY>

VyOS — VRRP & VLAN inspection

VRRP status and VIPs
show vrrp
show configuration commands | grep vrrp | grep 'address'
firewall zone membership
show configuration commands | grep 'firewall zone' | grep 'member'
DHCP leases and ARP
show dhcp server leases
show arp
full interface/VLAN map
show interfaces

CUPS printing — validation & setup

software validation
command -v lpstat && echo "CUPS present" || echo "CUPS not installed"
lpstat -r                                # scheduler running?
lpstat -p -d                             # printers + default
daemon lifecycle
sudo systemctl enable --now cups         # start + persist
printer discovery
lpinfo -v                                # available backends/URIs
lpinfo -m | grep -i <brand>             # available drivers
add printer and set default
sudo lpadmin -p <name> -v <uri> -m everywhere -E
lpoptions -d <name>
print
lp file.pdf                              # default printer
lp -d <name> -o sides=two-sided-long-edge file.pdf

PowerShell (from zsh)

All PowerShell commands run inside pwsh -NoLogo -Command '…​' from zsh. Running them bare fails — zsh interprets $, |, () as shell syntax.

Process management

top 5 processes by memory
pwsh -NoLogo -Command 'Get-Process | Sort-Object WorkingSet64 -Descending |
  Select-Object -First 5 ProcessName, Id,
    @{N="MB";E={[math]::Round($_.WorkingSet64/1MB)}} | Format-Table'
stop/start Teams
pwsh -NoLogo -Command 'Get-Process | Where-Object {$_.ProcessName -like "*teams*"} | Stop-Process'
pwsh -NoLogo -Command 'Start-Process "ms-teams"'

Export to JSON (pipe to jq)

always use -NoLogo when piping pwsh output to zsh tools
pwsh -NoLogo -Command 'Get-Process | Sort-Object WorkingSet64 -Descending |
  Select-Object -First 5 ProcessName, Id,
    @{N="MB";E={[math]::Round($_.WorkingSet64/1MB)}} | ConvertTo-Json' | jq '.'
Never pipe Format-Table into ConvertTo-Json — it produces layout metadata, not data. Select-Object first, then ConvertTo-Json.

Wi-Fi management (netsh)

force fresh network scan
netsh wlan disconnect interface="Wi-Fi"
netsh wlan show networks mode=bssid
netsh wlan connect name="CHLA-Remote" interface="Wi-Fi"

SSH from PowerShell

connect to homelab from Windows terminal
ssh evan@modestus-razer.inside.domusdigitalis.dev

WSL ↔ Windows — Cross-Environment Commands

From zsh (WSL) — control Windows
run any PowerShell command from zsh
pwsh -NoLogo -Command 'Get-Date'
run multi-line PowerShell from zsh (heredoc)
pwsh -NoLogo -Command "$(cat <<'PS'
$procs = Get-Process | Where-Object { $_.WorkingSet64 -gt 100MB }
$procs | Sort-Object WorkingSet64 -Descending |
  Select-Object ProcessName, Id, @{N="MB";E={[math]::Round($_.WorkingSet64/1MB)}} |
  Format-Table -AutoSize
PS
)"
open a file in Windows from WSL
# Open in default Windows app
wslview /mnt/c/Users/erosado/Documents/report.pdf

# Open Explorer to current WSL directory
explorer.exe .

# Open specific Windows path
explorer.exe 'C:\Users\erosado\Downloads'
copy WSL output to Windows clipboard
# Pipe anything to Windows clipboard
cat file.txt | clip.exe

# Copy a command's output
pwsh -NoLogo -Command 'Get-TransportRule | Format-List Name, State' | clip.exe
access Windows files from WSL
# Windows C: drive is at /mnt/c
ls /mnt/c/Users/erosado/Downloads/

# Copy from Windows to WSL
cp /mnt/c/Users/erosado/Downloads/report.pdf ~/atelier/

# Watch a Windows directory for new files
find /mnt/c/Users/erosado/Downloads -maxdepth 1 -mmin -5 -type f -printf '%T+ %p\n' | sort -r
From PowerShell — control WSL
run a bash command from PowerShell
wsl -e bash -c 'grep -rn "Ghost-Sender" ~/atelier/_bibliotheca/domus-captures/docs/'
run a specific WSL command and capture output
$result = wsl -e bash -c 'git -C ~/atelier/_bibliotheca/domus-captures log --oneline -5'
$result
Process Management — Windows Side
top processes by memory — formatted table
pwsh -NoLogo -Command '
Get-Process | Sort-Object WorkingSet64 -Descending |
  Select-Object -First 20 ProcessName, Id,
    @{N="MB";E={[math]::Round($_.WorkingSet64/1MB)}},
    @{N="CPU(s)";E={[math]::Round($_.CPU,1)}},
    @{N="Handles";E={$_.HandleCount}} |
  Format-Table -AutoSize'
find a specific process
pwsh -NoLogo -Command 'Get-Process | Where-Object { $_.ProcessName -like "*teams*" } |
  Select-Object ProcessName, Id, @{N="MB";E={[math]::Round($_.WorkingSet64/1MB)}} |
  Format-Table -AutoSize'
kill by name
pwsh -NoLogo -Command 'Stop-Process -Name "Teams" -Force -ErrorAction SilentlyContinue'
kill by PID
pwsh -NoLogo -Command 'Stop-Process -Id 12345 -Force'
what’s listening on a port (Windows equivalent of ss -tulnp)
pwsh -NoLogo -Command 'Get-NetTCPConnection -State Listen |
  Select-Object LocalAddress, LocalPort, OwningProcess,
    @{N="Process";E={(Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue).ProcessName}} |
  Sort-Object LocalPort | Format-Table -AutoSize'
specific port check
pwsh -NoLogo -Command 'Get-NetTCPConnection -LocalPort 8080 -ErrorAction SilentlyContinue |
  Select-Object LocalAddress, LocalPort, RemoteAddress, State,
    @{N="Process";E={(Get-Process -Id $_.OwningProcess).ProcessName}}'
Services — Windows Side
list running services
pwsh -NoLogo -Command 'Get-Service | Where-Object { $_.Status -eq "Running" } |
  Sort-Object DisplayName | Format-Table Name, DisplayName, Status -AutoSize'
check a specific service
pwsh -NoLogo -Command 'Get-Service -Name "WinRM" | Format-List Name, DisplayName, Status, StartType'
restart a service
Restart-Service -Name "WinRM" -Force
System Info — Quick Health from zsh
one-shot Windows system summary
pwsh -NoLogo -Command '
Write-Host "=== Windows System ===" -ForegroundColor Cyan
Write-Host "Hostname: $env:COMPUTERNAME"
Write-Host "User:     $env:USERNAME"
Write-Host "OS:       $((Get-CimInstance Win32_OperatingSystem).Caption)"
Write-Host "Uptime:   $((Get-Date) - (Get-CimInstance Win32_OperatingSystem).LastBootUpTime)"
Write-Host "RAM:      $([math]::Round((Get-CimInstance Win32_OperatingSystem).TotalVisibleMemorySize/1MB))GB total, $([math]::Round((Get-CimInstance Win32_OperatingSystem).FreePhysicalMemory/1MB))GB free"
Write-Host "CPU:      $((Get-CimInstance Win32_Processor).Name)"
Write-Host "Disk C:   $([math]::Round((Get-PSDrive C).Free/1GB))GB free of $([math]::Round(((Get-PSDrive C).Used + (Get-PSDrive C).Free)/1GB))GB"'
disk usage — all drives
pwsh -NoLogo -Command 'Get-PSDrive -PSProvider FileSystem |
  Select-Object Name, @{N="Used(GB)";E={[math]::Round($_.Used/1GB,1)}},
    @{N="Free(GB)";E={[math]::Round($_.Free/1GB,1)}},
    @{N="Total(GB)";E={[math]::Round(($_.Used+$_.Free)/1GB,1)}} |
  Format-Table -AutoSize'
Exchange Online — Connect from zsh
connect to Exchange Online (launches MFA prompt in Windows)
pwsh -NoLogo -Command 'Connect-ExchangeOnline -UserPrincipalName erosado@chla.usc.edu'
MFA prompt opens in the Windows browser. After auth, the session persists in the pwsh process. For multi-command sessions, start pwsh interactively instead of one-shot commands.
interactive PowerShell session from zsh (for Exchange, etc.)
pwsh -NoLogo
# Then inside pwsh:
# Connect-ExchangeOnline
# Get-TransportRule | Format-List Name, State
# exit
File Transfer Patterns
move files between WSL and Windows
# WSL → Windows Downloads
cp ~/atelier/_bibliotheca/domus-captures/output/report.pdf /mnt/c/Users/erosado/Downloads/

# Windows → WSL (glob)
cp /mnt/c/Users/erosado/Downloads/*.{png,pdf,jpg} ~/atelier/_staging/

# Bulk move with null safety
find /mnt/c/Users/erosado/Downloads -maxdepth 1 -name '*.pdf' -mmin -60 -print0 |
  xargs -0 -I{} cp {} ~/atelier/_staging/
watch Windows Downloads for new files (live)
inotifywait -m /mnt/c/Users/erosado/Downloads -e create -e moved_to |
  awk '{printf "%s  %s\n", strftime("%H:%M:%S"), $3}'
inotifywait requires inotify-tools. Install with sudo pacman -S inotify-tools if not present.

Security & Encryption

View encrypted files without writing to disk

pipe age decrypt to bat — nothing touches the filesystem
age --decrypt -i ~/.secrets/.metadata/keys/master.age.key \
  data/d001/projects/mandiant-remediation/findings-status-2026-04-16.adoc.age \
  | bat --language asciidoc --file-name "findings-status-2026-04-16.adoc"

Batch re-encrypt — brace expansion + loop

re-encrypt multiple project files
for f in data/d001/projects/mandiant-remediation/{findings-status,guest-acl-update,siem-report}-2026-04-16.adoc; do
  rm -f "${f}.age" && echo y | encrypt-file "$f"
done
Always rm -f the .age first. If you skip it, encrypt-file prompts about overwrite and may only delete the plaintext without re-encrypting.

Detect stale plaintext — files needing re-encryption

find plaintext newer than its .age counterpart
for f in data/d001/projects/*/*.adoc; do
  age="${f}.age"
  if [ -f "$f" ] && [ -f "$age" ]; then
    pt_mod=$(/usr/bin/stat -c'%Y' "$f")
    age_mod=$(/usr/bin/stat -c'%Y' "$age")
    [ "$pt_mod" -gt "$age_mod" ] && echo "STALE: $f"
  fi
done

Secure delete — shred for sensitive plaintext

shred -u data/d001/projects/mandiant-remediation/man-report.txt
On SSD/NVMe, shred is less effective (wear leveling), but better than rm which only removes the directory entry.

Pre-push audit — find all unencrypted project files

find data/d001/projects -type f ! -name '*.age' ! -name 'README.adoc' ! -name '.gitkeep' ! -name '*.py' | sort

System & Infrastructure

PipeWire audio validation

wpctl status                                    # PipeWire status
pactl list sinks short                          # list audio sinks
pw-play /usr/share/sounds/freedesktop/stereo/bell.oga  # test default sink
journalctl -b --grep='sof|cs35l56' --no-pager | tail -20  # kernel audio firmware
cat /proc/asound/cards                          # ALSA sound cards

gopass — personal document management

gopass-personal-docs    # interactive entry creation
gopass-query bills      # list recurring bills with totals
gopass-query storage    # list storage units with gate codes
gopass-query export bills  # export category to JSON

Makefile — daily workflow

make new-day      # create today's worklog + update attributes
make serve        # build + local server (port 8000)
make              # build only
make sync-nav     # sync worklog nav entries
make update-index # rebuild monthly index

KVM — VM & ISO management

list VMs on a KVM host
ssh kvm-01 "sudo virsh list --all"
ssh kvm-02 "sudo virsh list --all"
find ISE ISOs across KVM hosts (case-insensitive glob)
ssh kvm-01 "ls -lh /mnt/nas/isos/*[Ii][Ss][Ee]* /var/lib/libvirt/images/*[Ii][Ss][Ee]* /mnt/onboard-ssd/isos/*[Ii][Ss][Ee]* 2>/dev/null"
ssh kvm-02 "ls -lh /mnt/nas/isos/*[Ii][Ss][Ee]* /mnt/ssd/libvirt/images/*[Ii][Ss][Ee]* 2>/dev/null"
console into a VM
sudo virsh console <vm-name>             # Escape: Ctrl+]
check NAS mount on KVM host
ssh kvm-01 "mount | grep nas; ls /mnt/"

Per-project file dashboard

per-project summary — total files vs unencrypted plaintext
for d in data/d001/projects/*/; do
  total=$(find "$d" -type f | wc -l)
  plain=$(find "$d" -type f ! -name '*.age' ! -name 'README.adoc' ! -name '.gitkeep' ! -name '*.py' | wc -l)
  echo "$(basename "$d") | ${total} files | ${plain} plaintext"
done

USB-C / Thunderbolt Charging Diagnostics

Full evidence capture to file (one block, timestamped)
{
  echo "=== Power Supply ==="
  cat /sys/class/power_supply/*/status
  echo ""
  cat /sys/class/power_supply/*/type
  echo ""
  echo "=== UPower ==="
  upower -d | grep -E 'state|percentage|energy-rate|voltage'
  echo ""
  echo "=== dmesg (typec/thunderbolt/PD) ==="
  sudo dmesg | grep -iE 'typec|thunderbolt|ucsi|PD|power.delivery|charging' | tail -20
  echo ""
  echo "=== Pacman log (kernel/typec) ==="
  grep -iE 'thunderbolt|typec|ucsi|^.*upgraded linux ' /var/log/pacman.log | tail -20
} | tee /tmp/INC-$(date +%F)-usbc-charging.txt

Pattern: { } groups commands into a single stdout stream. tee writes to file AND displays on screen. Reusable for any multi-command evidence capture — change the commands inside, keep the structure.

pacman — package inspection

Source: 2026-06-25 — curl error 77 investigation, checking for package upgrades

# Check package version and install date (awk field filter)
pacman -Qi curl | awk '/^Version|^Install Date/'