Boost Your Productivity with 20 Essential Command-Line Tools

This article compiles a practical list of twenty command-line tools that can significantly improve the efficiency of developers, system administrators, and power users. Each tool is briefly described, and key usage examples are provided.

1. ag

A faster recursive search tool for file contents, outperforming grep and ack.

2. tig

An interactive text-mode interface for Git repositories, allowing you to explore commits and branches without using the standard Git commands.

3. mycli

A MySQL client with syntax highlighting and command auto‑completion, offering an experience similar to ipython and serving as a drop‑in replacement for the default mysql client.

4. jq

A lightweight and flexible command‑line JSON processor that formats and highlights JSON output, usable as an alternative to python -m json.tool.

5. shellcheck

A static analysis tool for shell scripts that detects syntax errors and non‑portable constructs, helping you write safer Bash code.

6. yapf

Google’s Python code formatter, supporting both PEP 8 and Google style guidelines.

7. mosh

A UDP‑based remote terminal that replaces ssh with more stable connections, automatically reconnecting even when the IP address changes.

8. fzf

A fuzzy finder for the command line that enables interactive, intelligent searching of files or command history, often combined with Ctrl‑R for rapid command recall.

9. PathPicker (fpp)

Detects file and directory paths in terminal output and provides an interactive selector; particularly handy when used alongside Git.

10. htop

An improved process monitor with a colorful, user‑friendly interface, serving as a modern replacement for top.

11. axel

A multi‑threaded download accelerator that can replace curl or wget for faster file retrieval.

axel -n 20 http://centos.ustc.edu.cn/centos/7/isos/x86_64/CentOS-7-x86_64-Minimal-1511.iso

12. sz/rz

Interactive file transfer utilities that simplify moving files through multiple jump hosts without manual nesting of scp commands.

13. cloc

A code‑line counter that reports the number of source lines, blank lines, and comment lines per programming language.

14. ccache

A compiler cache for C/C++ that dramatically speeds up repeated builds, especially useful when recompiling the Linux kernel. gcc foo.c After enabling ccache, the same compilation becomes:

ccache gcc foo.c

15. tmux

A terminal multiplexer that allows multiple sessions, panes, and windows, effectively replacing screen and nohup.

16. neovim

An extensible, modern fork of Vim that serves as a drop‑in replacement with improved plugin architecture.

17. script / scriptreplay

Utilities for recording terminal sessions ( script) and replaying them ( scriptreplay).

script -t 2>time.txt session.typescript # start recording

scriptreplay -t time.txt session.typescript

18. you-get

A powerful media downloader supporting sites such as YouTube, Google+, Youku, Mango TV, Tencent Video, and others.

19. Clipboard shortcuts (pbcopy / pbpaste)

On macOS, pbcopy copies stdin to the system clipboard, while pbpaste outputs clipboard contents.

cat test.sh | pbcopy

pbpaste

20. thefuck

A command‑line tool that automatically corrects mistyped commands. For example, typing aptget followed by fuck rewrites it to apt-get, and it can also add missing sudo when needed.

21. tldr

A concise cheat‑sheet client that provides simplified examples for common commands, useful when you don’t want to read the full man page.

Example: tldr tar Overall, these tools cover searching, version control, database interaction, JSON handling, shell scripting, code formatting, remote access, fuzzy finding, path selection, process monitoring, downloading, file transfer, code statistics, compilation caching, terminal multiplexing, editing, session recording, media downloading, clipboard management, speech synthesis, command correction, and quick reference lookup.