Shell Expert

What problem does it solve?

Users struggle with complex shell scripting, inefficient CLI tool usage, and non-portable automation. This Skill provides expert guidance and automation to simplify these tasks, ensuring robust, cross-platform, and efficient shell operations.

Core Features & Use Cases

• CLI Tool Mastery: Expertly use modern tools like jq, yq, fd, rg for data processing, file finding, and text manipulation.
• Robust Scripting: Develop portable, error-handled shell scripts for Linux, macOS, and BSD, ensuring reliability.
• Automation Patterns: Implement advanced automation for CI/CD, system administration, and workflow integration.
• Use Case: Automatically parse complex JSON logs with jq, filter relevant entries, and generate a summary report, saving hours of manual log analysis.

Quick Start

Example: Find all markdown files and lint them

fd -e md -x markdownlint {}

Example: Extract active users from a JSON file

jq '.users[] | select(.status == "active") | .username' users.json