Appendix: Commands Learned

Commands Learned

Commands discovered during RHCSA study that are new or used differently than on Arch. Organized by exam domain.

Documentation (Ch 2)

Command What It Does

man -k <keyword>

Search man pages by keyword (same as apropos)

man 5 passwd

Section 5 = file format, not the command

pinfo coreutils

Better info page reader than info

File Management (Ch 3-4)

Command What It Does

User & Permissions (Ch 6-7)

Command What It Does

Networking (Ch 8)

Command What It Does

Software (Ch 9)

Command What It Does

systemd (Ch 10)

Command What It Does

Storage & LVM (Ch 11-14)

Command What It Does

Scheduling (Ch 15)

Command What It Does

Logging (Ch 16)

Command What It Does

SELinux (Ch 17) — CRITICAL

Command What It Does

Containers (Ch 20)

Command What It Does
Focus on RHEL-specific commands that differ from Arch. Your Arch daily driver uses different tools for many of these (pacman vs dnf, btrfs vs LVM, nftables vs firewalld).