The Linux Command Line by William Shotts is a 596-page book for new command line users covering command line use, shell scripting and common command line programs. Released under a BY-NC-ND Creative Commons license, it is available as a free PDF download. A sequel, Adventures with the Linux Command Line, is also available as a free PDF download.
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The Art of Command Line is a one-page guide of notes and tips on command-line use, aimed at both beginners and experienced users. It is written for Linux, with separate macOS only and Windows only sections, and focuses on interactive Bash.
Bashly is a command line application written in Ruby that generates bash command line tools from a YAML configuration describing commands, subcommands, arguments, and flags. It produces a standalone script that parses and validates user input, provides help messages, and runs per-command code kept in separate files. Optional standard library functions include color output, config file management, YAML parsing, and bash completions.
A curated list of command-line frameworks, toolkits, guides and gizmos, inspired by awesome-php. It is organized into sections such as shells, command-line productivity, customization, system utilities and shell script development, and is also available on Unix-Shell.ZEEF.com.
Clink is an open source software project hosted on GitHub, created by developer chrisant996. It brings Bash's powerful command line editing capabilities to the Windows cmd.exe command interpreter, allowing users to access enhanced line editing features in the default Windows command line environment.
A site offering one-line shell challenges intended to help users improve their command-line skill. The interface accepts commands with keyboard shortcuts for history, completion and clearing the line. The site lists solutions and was built using JavaScript, Openmoji and Golang.
Command Line Tools is a system utility for Windows, hardware checks, cleanup, process control, or desktop customization.
Linux Command Library is a collection of cheat sheets with Linux tips and terminal basics, covering categories such as system control, users, files, package managers, video and audio, hacking tools and terminal games. The site also links to Braincup, an open source brain training project with 41 mini-games, from the same maker.
Linux Command Library is a project offering a GUI and CLI app for browsing Linux manual pages and terminal tips. The app has 9257 manual pages, 30+ basic categories and general terminal tips. It works fully offline without an internet connection and has no tracking software. Native CLI and GUI binaries are available for Linux, macOS and Windows.
explainshell.com is a web tool that matches command-line arguments to their help text. Users write down a command line to see the help text that matches each argument. The page includes numerous shell command examples.
Difftastic is an MIT-licensed command-line diff tool that compares files by syntax rather than line-by-line, parsing code with tree-sitter. It is intended to produce diffs that are easier for humans to read, showing real line numbers and handling formatting and wrapping changes. It supports many programming languages and file formats and can be configured for use with Git.
Command-line downloader for the Soulseek network. It accepts search text and playlist or file inputs, then searches for matching files using configurable preferences.
yt-dlp is a feature-rich command-line audio and video downloader with support for thousands of sites. It is a fork of youtube-dl based on the now inactive youtube-dlc, and can be installed using binaries, pip or a third-party package manager.
A reference page covering macOS-specific command-line utilities for Unix-like macOS systems. It documents commands such as caffeinate for sleep behavior, pbcopy and pbpaste for clipboard access, networkQuality for Internet speed tests, sips for image manipulation, open for launching files and applications, textutil for document conversion, and mdfind and mdls for Spotlight searches.
A command-line tool that scrapes the site hianime to browse and watch anime, including alone and with friends. It is distributed with a GPL-3.0 license and lists Linux, Mac and Android among its supported platforms.
Awesome Terminal Recorder is an open source command-line or Unix tool for terminal workflows and system use.
Aylur's GTK Shell is an open source command-line or Unix tool for terminal workflows and system use.
GNU Bash is the GNU Project's shell, an sh-compatible shell that incorporates features from the Korn shell and the C shell. It is intended to conform to the POSIX Shell and Tools standard and offers improvements over sh for programming and interactive use. Most sh scripts can run by Bash without modification. It includes command-line editing, job control, shell functions and aliases, and indexed arrays.
The Bash Guide is an open-source guide introducing basic and advanced concepts of the bash shell. It aims to teach newcomers, advanced users and long-time users to write safe and robust bash scripts and interact efficiently with the shell as a command line interface. The guide is a continuing work in progress, with new chapters written and existing chapters updated.
Bash Crawl helps learn, search, or use command-line tools, shell commands, and terminal workflows.
bash-it is an open source command-line or Unix tool for terminal workflows and system use.
Basher is a package manager for bash scripts. It installs, uninstalls and updates bash packages from the command line, in the manner of composer for PHP, npm for node.js and apt for Linux tools. Packages need not register before use; if organised in a logical way, basher knows how to install them.
calcurse is a calendar and scheduling application for the command line that keeps track of events, appointments and everyday tasks. It includes a configurable notification system, a customizable curses-based interface and command line options for filtering and formatting appointments, making it suitable for scripts.
Certbot is a tool run from the command line to obtain and install HTTPS certificates. It can either be run once to get free HTTPS certificates or used with instructions generated for a server's software and system. Using it requires comfort with the command line and an HTTP website. The project is a project of the Electronic Frontier Foundation.