ShellCheck Shell Script Static Analyzer

Run static analysis on bash and shell scripts using ShellCheck to detect syntax errors, semantic pitfalls, and portability issues. Produces machine-readable diagnostics with fix suggestions.

Installation

Use the upstream install or setup path that matches your environment:

• brew install shellcheck
• conda install -c conda-forge shellcheck
• docker run --rm -v "$PWD:/mnt" koalaman/shellcheck:stable myscript
• $ brew install cabal-install

Requirements and caveats from upstream:

• From Docker Hub:
• This section describes how to build ShellCheck from a source directory. ShellCheck is written in Haskell and requires 2GB of RAM to compile.

Basic usage or getting-started notes:

• Run shellcheck yourscript in your terminal for instant output, as seen above.

• For example, in a Makefile:

• To run ShellCheck via pre-commit, add the hook to your .pre-commit-config.yaml:

• Source: https://github.com/koalaman/shellcheck

• Extracted from upstream docs: https://raw.githubusercontent.com/koalaman/shellcheck/HEAD/README.md

Source

• Agent Skill Exchange