nushell

What problem does it solve?

This Skill guides users in leveraging Nushell (Nu), a modern shell that treats data as structured, not just text. It solves the limitations of traditional shells by providing powerful, cross-platform data pipelines, clearer error messages, and integrated programming language features for efficient scripting and data processing.

Core Features & Use Cases

• Structured Data Pipelines: Process JSON, CSV, YAML, and other structured data directly within the shell, eliminating the need for external parsing tools.
• Cross-Platform Scripting: Write powerful scripts that work seamlessly across Windows, macOS, and Linux, enhancing developer productivity.
• Rich Data Manipulation: Utilize commands like where, select, sort-by, each, and update to filter, transform, and manage data with ease.
• Use Case: To process a large JSON log file, use Nushell to open the file, filter entries based on a specific error code, select relevant fields like timestamp and message, and then output the result as a CSV.

Quick Start

Install Nushell via Homebrew (macOS) or Cargo (Linux), then list files in the current directory and filter them by size greater than 1MB.