shell-mastery — Power Moves

One-Liner Power Moves (impress the hermits)

Count lines of code by language

find . -name "*.py" -o -name "*.sh" -o -name "*.adoc" | xargs wc -l | sort -rn | head -20

Generate a random password

< /dev/urandom tr -dc 'A-Za-z0-9!@#$%' | head -c 32; echo

Create a quick HTTP server

python3 -m http.server 8080

Watch a command (refresh every 2s)

watch -n2 'ss -tlnp | grep LISTEN'

Parallel execution

cat servers.txt | xargs -P4 -I{} ssh {} "uptime"

Base64 encode/decode

echo "secret" | base64
echo "c2VjcmV0Cg==" | base64 -d

Quick checksum

sha256sum file.txt
echo -n "string" | sha256sum

Hex dump

xxd file.bin | head -20
od -A x -t x1z file.bin | head -20