Command Line Basics vs Terms

Command Line Basics is an independent study app for learning and practicing essential shell and terminal skills. It is built for beginners, students, bootcamp learners, junior developers, QA testers, and anyone who wants stronger practical command line fluency. Practice across 160 questions covering Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. Every question includes an explanation so you can understand the idea behind the answer, not just memorize it. Features: - FSRS spaced-repetition intervals to review at the right time - Weak-point heatmap to show topics that need work - Daily challenge for consistent practice - Mock exams for timed review - Offline practice for study anywhere - No login required Independent study app for Command Line Basics practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Practice offline, no login required.

You've seen the terminal. Your AI assistant practically lives in it. Time to actually read what it's typing. Terms teaches you real terminal commands the way a vocabulary app teaches words — one card at a time, a few a day, until they stick. THE WIDGET IS THE APP Add the home-screen widget and a new command appears next to your apps every day. Read it when you unlock your phone. No app open required. A FEED YOU CAN BINGE Full-screen flashcards drawn as terminal windows: the command, what it does, every flag explained piece by piece, and why you've seen it before — "agents use grep to locate where code lives." HONEST LEVELS A 60-second placement test deals you in at the right tier: on-ramp, daily driver, combos & power, or deep cuts. No fake progress, no flattery — the deck starts exactly where your knowledge ends. PRACTICE THAT STICKS Quick quizzes built from the cards you're learning, with spaced repetition scheduling the reviews. Tap "just got it!" or "alr knew it" — that's the whole ceremony. CALM BY DESIGN • One notification a day. Opt-in, at your time, hard cap two. • Free, offline, no account, no ads. • Dangerous commands carry the warning they deserve (looking at you, rm -rf). WHAT'S INSIDE 231 real commands and concepts at launch — ls, cd, grep, cat, lsof -i :3000, chmod, pipes, redirects, xargs, sed, awk, tar — tiered from total beginner to power user, searchable in the library, every one tracked to mastery. Built for everyone shell-adjacent: vibe coders shipping with AI, students, new developers, and anyone who has ever copy-pasted a command and prayed. The terminal is the first course. More languages of code are coming.