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writing-bash-scripts

Bash script style guide. Always use when writing bash scripts, shell scripts, or CLI bash tools.

personAuthor: jakexiaohubgithub

Bash Script Style Guide

  • Use #!/usr/bin/env bash as shebang
  • Always use set -euo pipefail for safety
  • Keep scripts minimal: no unnecessary comments or echoes
  • Minimal input validation; print usage to stderr and exit if inputs are missing/invalid
  • Don't check for installed commands if failure is obvious on use
  • Make script executable: chmod +x <script>
  • Prefer concise, direct logic over verbosity