Terminal Mastery

An interactive, browser-based training lab for tmux, Vim, grep, sed, and awk with simulated terminals, typed practice, hints, challenges, and progress tracking.

Reading shortcut lists does not build muscle memory. Learning tmux and Vim on a live server risks real mistakes, and most documentation never tells you why a keystroke did something unexpected.

Terminal Mastery lets you try commands in safe TypeScript simulators, get educational feedback on every mistake, and repeat until the keystrokes are automatic.

Features

• 103 guided lessons: Terminal foundations, tmux, Vim, regex, grep, sed, and awk with typed practice and quizzes.
• Safe simulators: Shell, tmux, Vim, and text-tool engines run in the browser; nothing executes on your machine.
• Mistake-aware feedback: Educational errors explain what the keys you pressed actually did and what the step needs.
• Practice and review: Daily plan, spaced-repetition queue, and 33 timed challenges with progressive hints.
• Labs and cheatsheets: Free-play tmux, Vim, and text labs plus 170 searchable shortcuts and patterns.
• Configs you can keep: Test starter and power-user .tmux.conf and .vimrc files, then copy or download them.

Details

• Language: TypeScript
• Platform: Any modern browser · Node.js 18+
• License: MIT
• Version: Rolling