Bash Explainer

Problem

Engineers can often run bash commands without knowing what each short flag, combined option, pipe, or redirection does. Copied scripts are especially common: find ... | xargs ..., awk ... > out.log 2>&1 may execute, but it is hard to see what is read, where output goes, and whether a file is overwritten. bash-explainer does not execute or modify commands; it breaks commands into small learnable units for quick review after execution.

How It Works

• Explain after execution: explanations typically follow command results to reduce interruption; the skill does not block or rewrite commands.
• Component breakdown: identifies core commands (ls, grep, sed, awk), options (-l, --all, -f file), and operators (|, >, >>, 2>&1).
• Concise by default: starts with a one-sentence intent, then lists key parts; detailed mode is used only when requested.
• Clear context: highlights common use cases, input/output behavior, and side effects, with related alternatives when useful.

Boundaries

It is useful for learning common Shell commands, reviewing ad-hoc scripts, teaching, and adding quick annotations in code review. For complex dynamic scripts, $(...), arrays, eval, environment dependencies, permission changes, or network side effects, interpretation still depends on runtime context; it is not a full security audit and does not replace man, help, bash --version, or official documentation.