Install, configure, and use Claude Code — Anthropic's agentic CLI. Covers interactive mode, headless scripting, CLAUDE.md memory files, and the project/user settings hierarchy.
Complete reference for every built-in Claude Code slash command — session control, context management, configuration, tools, and MCP.
Short standalone Python scripts for common tasks — file I/O, JSON manipulation, HTTP requests, CSV processing, and data transformation.
Build command-line interfaces with click using decorators. Covers commands, options, arguments, groups, prompts, and progress bars.
Useful Python one-liners runnable directly from the shell with python -c or python -m. No file creation needed.
Make terminal output beautiful with Rich. Covers styled print, Console, tables, progress bars, syntax highlighting, live displays, and the rich-cli command.
Pattern-action language for structured text. Field splitting, built-in variables, arithmetic, string functions, arrays, BEGIN/END blocks, and practical data-processing recipes.
A cat clone with syntax highlighting, Git integration, line numbers, paging, and diff support. Drop-in replacement with many quality-of-life improvements for viewing files in the terminal.
Transfer data with URLs. Covers HTTP methods, headers, authentication, forms, TLS, cookies, proxies, timeouts, parallel downloads, and a comprehensive recipe collection.
Extract columns by delimiter or byte position (cut), merge files column-wise (paste), and join on a common key field (join). Essential for tab/CSV/field-delimited data.
Check filesystem free space (df), measure directory sizes (du), and view a colourful disk overview (duf). Covers all key flags, human-readable output, and common sysadmin recipes.
A modern ls replacement with colour coding, Git status, icons, tree view, and rich metadata. eza is the actively maintained fork of the original exa project.
Modern find replacement written in Rust. Simpler syntax, respects .gitignore, supports regex and glob patterns, parallel execution, and coloured output.
POSIX file finder with powerful expression-based filters for name, type, size, time, permissions, and ownership. Covers exec actions, pruning, and real-world recipes.
Comprehensive fish shell reference covering syntax, variables, functions, abbreviations, completions, config files, path management, prompt customization, Fisher plugins, and migration from bash/zsh.
Complete Git reference. Setup, staging, committing, branching, merging, rebasing, stashing, remotes, tags, log inspection, undoing mistakes, submodules, and power-user aliases.
Search files and streams using fixed strings, extended regex, or PCRE. Covers all major flags, context, recursive search, and pipeline patterns.
Comprehensive ImageMagick 7 reference covering magick, identify, mogrify, composite, montage, format conversion, resize, crop, rotate, color adjustments, effects, drawing, text, PDF operations, and batch processing.
Slice, filter, map, and transform JSON data from the command line. Covers all essential filters, built-in functions, select, map, reduce, streaming, and real-world API response processing.
Inspect running processes (ps), list network connections and listening ports (ss / netstat). Covers output formats, filtering, process trees, and socket state analysis.
Modern grep replacement written in Rust. Respects .gitignore, searches hidden files optionally, supports PCRE2, and is significantly faster on large codebases.
Non-interactive text transformation. Substitution, deletion, insertion, address ranges, in-place editing, and multi-line patterns with practical recipes.
Sort lines (numerically, by field, human-readable sizes), deduplicate with uniq, count lines/words/bytes with wc, and number lines with nl. With real-world pipeline recipes.
Translate, squeeze, and delete characters with tr. Build and execute command lines from stdin with xargs. Includes parallel execution, NUL safety, and pipeline recipes.
Non-interactive network downloader. Covers single and batch downloads, recursive mirroring, authentication, resuming, rate limiting, and site archiving.
Command-line tools, system utilities, Homebrew, Finder tricks, and macOS-specific development workflows.
Comprehensive macOS terminal reference covering file management, processes, networking, Homebrew, defaults, diskutil, launchctl, pbcopy/pbpaste, open, say, and power-user recipes.
Variables, operators, pipelines, Where-Object, ForEach-Object, Select-Object, sorting, grouping, remoting, jobs, CIM, registry, JSON, error handling, and common cmdlets.
Fast, multi-protocol download utility supporting HTTP(S), FTP, SFTP, BitTorrent, and Metalink with resumption and parallel connections.
Extract data from HTML, XML, and JSON using XPath, CSS selectors, pattern matching, and JSONiq from the command line.
PowerShell, winget, WSL interop, and Windows administration.
Installing, upgrading, and managing packages with Windows Package Manager.
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