How does it improve script security?

It enforces strict variable quoting to prevent word-splitting bugs, uses mktemp for secure file creation, and implements exit traps to ensure sensitive temporary resources are always cleaned up.

Does this skill support POSIX sh scripts?

Yes, while the skill focuses on Bash-specific features like pipefail and arrays, it includes specific templates and guidance for maximum portability in POSIX sh environments.

How does it handle differences between macOS and Linux?

The skill provides portable wrapper functions for common utilities like sed, date, and stat, which have different flags and behaviors across BSD (macOS) and GNU (Linux) implementations.

Does this skill help with shell script testing?

Absolutely. It includes patterns and templates for implementing unit tests using bats-core, the industry standard for testing shell scripts.

Bash Development Patterns

Name: Bash Development Patterns
Author: flatrick

byflatrick

0•

Developer Tools

Implements safe, portable, and idiomatic Bash scripting patterns including error handling, security hardening, and cross-platform techniques.

This skill provides a comprehensive framework for writing robust shell scripts within Claude Code. It automates the implementation of industry best practices such as strict error handling with safety headers, secure temporary file management via traps, and portable argument parsing using getopts. By enforcing local variable scoping and providing utility patterns for cross-platform compatibility between Linux and macOS, it ensures that your automation tools and CI/CD pipelines are maintainable, secure, and production-ready.

Key Features

01Safety Header Implementation (set -euo pipefail)

02Secure Argument Parsing with getopts and Long-form Support

03Cross-Platform Compatibility Helpers for macOS and Linux

040 GitHub stars

05Automated Resource Cleanup and Temporary File Traps

06Standardized Logging and Error Handling Functions

Use Cases

01Building robust and fail-safe CI/CD automation scripts

02Hardening legacy shell scripts for secure production execution

03Developing portable CLI tools that function across diverse Unix environments

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add flatrick/mdt bash-patterns

For use in Claude.ai and ChatGPT