Does this skill support POSIX-compliant shell scripts?

Yes, while primarily focused on Bash, it provides patterns for both modern Bash and standard POSIX /bin/sh to ensure maximum portability where required.

Why does it emphasize 'set -euo pipefail'?

This safety header ensures scripts exit immediately on errors, treat unset variables as fatal, and catch failures within pipelines, preventing unpredictable script behavior.

How does it protect against shell injection and bugs?

By enforcing strict variable quoting, providing secure temporary file templates, and implementing robust argument validation to prevent common shell vulnerabilities.

How does the skill handle macOS and Linux command differences?

It includes detection logic and portable wrappers to manage the differences between BSD (macOS) and GNU (Linux) tools like sed, date, and stat.

Can it help me write unit tests for my shell scripts?

Absolutely. The skill includes specific patterns and integration guidance for the bats-core testing framework.

Bash Scripting Patterns

Name: Bash Scripting Patterns
Author: flatrick

byflatrick

0•

Deployment & DevOps

Implements safe, portable, and idiomatic Bash scripting patterns for building robust shell automation and CLI tools.

The bash-patterns skill equips Claude with specialized knowledge to generate production-grade shell scripts that are secure, maintainable, and cross-platform compatible. It enforces critical safety standards such as error handling via pipefail, proper variable quoting to prevent word splitting, and secure temporary resource management with cleanup traps. Whether you are building complex CI/CD pipelines or simple utility scripts, this skill ensures your shell code adheres to best practices while handling the nuances between Linux and macOS environments.

Key Features

01Hardened temporary file management using mktemp and exit traps

02Secure argument parsing templates using getopts and positional validation

03Cross-platform compatibility wrappers for BSD and GNU utility differences

04Standardized logging and debugging functions for better script observability

050 GitHub stars

06Safety header implementation (set -euo pipefail) for robust error handling

Use Cases

01Building cross-platform command-line utilities for diverse development teams

02Developing production-ready CI/CD automation and deployment scripts

03Refactoring legacy shell scripts to improve security and portability

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add flatrick/mdt bash-patterns

For use in Claude.ai and ChatGPT