How does this skill improve Bash script performance?

It utilizes the new Bash 5.3 in-shell command substitution syntax which executes commands in the current shell context, eliminating the performance cost of forking subshells.

Can I perform decimal math without external tools like 'bc'?

Yes, this skill leverages the Bash 5.3 'fltexpr' loadable builtin to perform floating-point arithmetic natively within the shell.

Does this skill support Windows environments?

Yes, it includes mandatory guidelines for using backslashes in file paths to ensure tool compatibility with Windows-based file operations.

How does this skill handle repository documentation?

It follows a strict documentation policy that prioritizes updating existing README files and avoids creating new markdown files unless specifically requested by the user.

Is it safe to use these features on older systems?

The skill provides fallback patterns and feature detection logic to ensure scripts remain functional even on older versions of Bash while utilizing 5.3 features where available.

Bash 5.3 Modern Patterns

Name: Bash 5.3 Modern Patterns
Author: JosiahSiegel

byJosiahSiegel

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开发者工具

Implements high-performance Bash 5.3 features and modern shell scripting patterns for optimized system automation and developer tools.

关于

This skill equips Claude with the latest capabilities of Bash 5.3 (released 2025), enabling the creation of efficient, subshell-free scripts that significantly reduce execution overhead. It focuses on performance optimization using new command substitution syntaxes, enhanced built-ins for sourcing and reading, and advanced features such as native floating-point arithmetic and configurable glob sorting. Additionally, it enforces critical cross-platform standards, ensuring correct Windows file path formatting and maintaining repository cleanliness through strict documentation guidelines and minimal file creation.

主要功能

Native floating-point arithmetic support via fltexpr builtin
Enhanced interactive scripts with programmable read completion
7 GitHub stars
Dynamic glob sorting and reusable signal handling with BASH_TRAPSIG
Optimized in-shell command substitution to eliminate subshell overhead
Advanced result handling using the new REPLY variable syntax

使用场景

Interactive CLI tools with advanced path completion and history
Modular shell library management using custom source paths
High-performance log processing and data transformation loops

关于

主要功能

Native floating-point arithmetic support via fltexpr builtin
Enhanced interactive scripts with programmable read completion
7 GitHub stars
Dynamic glob sorting and reusable signal handling with BASH_TRAPSIG
Optimized in-shell command substitution to eliminate subshell overhead
Advanced result handling using the new REPLY variable syntax

使用场景

Interactive CLI tools with advanced path completion and history
Modular shell library management using custom source paths
High-performance log processing and data transformation loops