rcaloras/bash-preexec

Health v2 · maintenance only

Adoption not part of the score

1061 stars · 104 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A single-file shell library that brings Zsh-style preexec and precmd hook functions to Bash 3.1+. It lets scripts and tools run code just before command execution and just before each prompt, with support for hook function arrays.

Use cases

• run a hook before each bash command executes
• replace PROMPT_COMMAND with something more reliable
• track command execution time in bash
• integrate shell history tools like Atuin with bash
• build custom bash prompt logic
• capture the typed command for logging or syncing

When to choose

• you need Zsh-style preexec/precmd hooks in Bash
• you're building a shell integration for a terminal or history tool that must support Bash
• PROMPT_COMMAND is too fragile for your prompt or hook needs

When to avoid

• you're using Zsh, fish, or another shell with native hooks
• you only need simple prompt customization without hooks
• you need hooks in a non-Bash POSIX shell like dash

Facets

library · maturity stable

developer-tools cli middleware developer-tools command-line cli cross-platform bash shell-hooks preexec precmd zsh-style prompt-command terminal command-line linux macos

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markdown · JSON · MCP: product_card(name="rcaloras/bash-preexec")