Does this skill support POSIX-compliant shell scripts?

Yes, it provides specific patterns for both Bash-specific extensions and POSIX sh-compliant logging and directory resolution for maximum portability.

Can I use this to create CLI tools with subcommands?

Absolutely. The skill includes a dedicated subcommand dispatch pattern similar to tools like git or docker, allowing for organized and scalable command structures.

How does it resolve the script's directory path?

It provides advanced patterns that correctly identify the script's physical location, even when the script is a symlink or is being sourced from another directory.

How does it handle cleanup if a script fails or is interrupted?

It utilizes the EXIT trap pattern, ensuring that temporary files, directories, and background child processes are cleaned up regardless of how the script terminates.

Does the logging support colored output?

Yes, it includes a logging library that automatically detects TTY support to provide colored output for errors and warnings without breaking non-interactive pipes.

Shell Script Patterns

Name: Shell Script Patterns
Author: jsamuelsen11

byjsamuelsen11

0•

Deployment & DevOps

Implements production-ready shell script patterns for argument parsing, structured logging, and robust process management.

The Script Patterns skill provides Claude with a library of standardized, high-quality templates for building reliable Bash and POSIX-compliant shell scripts. It eliminates common scripting pitfalls by providing battle-tested implementations for complex argument parsing (including long options and subcommands), diagnostic logging to stderr with color support, automated resource cleanup via traps, and secure temporary file management. This skill is ideal for developers looking to transform simple scripts into maintainable, professional-grade CLI utilities and automation tools.

Key Features

01Robust error handling and resource cleanup using EXIT and ERR trap patterns.

02Standardized logging library with timestamps, color detection, and stderr redirection.

03Comprehensive argument parsing for short (getopts) and long (while+case) options.

04Secure temporary file and directory management with atomic write patterns.

050 GitHub stars

06Reliable script directory resolution that handles symlinks and sourcing.

Use Cases

01Developing automation scripts that require guaranteed cleanup of temp files and background processes.

02Building production-grade CLI tools with subcommands and complex flag requirements.

03Refactoring legacy shell scripts into maintainable, portable, and error-resistant utilities.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jsamuelsen11/claude-config script-patterns

For use in Claude.ai and ChatGPT

Download Skill