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Bash Learning Roadmap

Shell scripting from one-liners to production-grade automation scripts.

Estimated time:3–4 weeks

1🌱

Phase 1 — Fundamentals

Variables, quoting, and expansion

Conditionals (if/case)

Loops (for/while)

Pipes & redirection

2📜

Functions & argument parsing (getopts)

Exit codes & error handling (set -euo pipefail)

Arrays & associative arrays

Text processing (grep/sed/awk basics)

3🛡️

Trap for cleanup on exit/signals

Idempotent script design

Logging & dry-run modes

ShellCheck for static analysis

4⚙️

important

Wrapping bash in cron/systemd timers

Parallelism (xargs -P, background jobs)

Interfacing with CLIs (aws/kubectl/docker)

Begin with interview questions to assess your current level.