25 cheat sheets
Search files and streams using fixed strings, extended regex, or PCRE. Covers all major flags, context, recursive search, and pipeline patterns.
Modern grep replacement written in Rust. Respects .gitignore, searches hidden files optionally, supports PCRE2, and is significantly faster on large codebases.
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.
Non-interactive text transformation. Substitution, deletion, insertion, address ranges, in-place editing, and multi-line patterns with practical recipes.
Pattern-action language for structured text. Field splitting, built-in variables, arithmetic, string functions, arrays, BEGIN/END blocks, and practical data-processing recipes.
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.
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.
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 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.
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.
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.
Transfer data with URLs. Covers HTTP methods, headers, authentication, forms, TLS, cookies, proxies, timeouts, parallel downloads, and a comprehensive recipe collection.
Non-interactive network downloader. Covers single and batch downloads, recursive mirroring, authentication, resuming, rate limiting, and site archiving.
Inspect running processes (ps), list network connections and listening ports (ss / netstat). Covers output formats, filtering, process trees, and socket state analysis.
Complete Git reference. Setup, staging, committing, branching, merging, rebasing, stashing, remotes, tags, log inspection, undoing mistakes, submodules, and power-user aliases.
Comprehensive fish shell reference covering syntax, variables, functions, abbreviations, completions, config files, path management, prompt customization, Fisher plugins, and migration from bash/zsh.
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.
Debian and Ubuntu package management — update, install, remove, upgrade, and maintain packages with apt-get.
Fast, multi-protocol download utility supporting HTTP(S), FTP, SFTP, BitTorrent, and Metalink with resumption and parallel connections.
stdin, stdout, stderr redirection operators and pipeline patterns in bash.
Local, remote, and dynamic SSH tunnels with practical examples.
Writing, enabling, and managing systemd service, timer, and socket units.
Extract data from HTML, XML, and JSON using XPath, CSS selectors, pattern matching, and JSONiq from the command line.
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