Master ShellCheck static analysis configuration and usage for shell script quality. Use when setting up linting infrastructure, fixing code issues, or ensuring script portability.
Comprehensive guidance for configuring and using ShellCheck to improve shell script quality, catch common pitfalls, and enforce best practices through static code analysis.
When to Use This Skill
Setting up linting for shell scripts in CI/CD pipelines
Analyzing existing shell scripts for issues
Understanding ShellCheck error codes and warnings
Configuring ShellCheck for specific project requirements
Integrating ShellCheck into development workflows
Suppressing false positives and configuring rule sets
Enforcing consistent code quality standards
Migrating scripts to meet quality gates
Detailed patterns and worked examples
Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.
Best Practices
Run ShellCheck in CI/CD - Catch issues before merging
Configure for your target shell - Don't analyze bash as sh
Document exclusions - Explain why violations are suppressed
Address violations - Don't just disable warnings
Enable strict mode - Use --enable=all with careful exclusions
Update regularly - Keep ShellCheck current for new checks
Use pre-commit hooks - Catch issues locally before pushing
Integrate with editors - Get real-time feedback during development
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