Shell Scripting

Write reliable, maintainable bash scripts. Covers argument parsing, error handling, portability, temp files, parallel execution, process management, and self-documenting scripts.

When to Use

• Writing scripts that others (or future you) will run
• Automating multi-step workflows
• Parsing command-line arguments with flags and options
• Handling errors and cleanup properly
• Running tasks in parallel
• Making scripts portable across Linux and macOS
• Wrapping complex commands with a simpler interface

Script Template

#!/usr/bin/env bash
set -euo pipefail