Command Line Quiz
Test yourself with the Command Line Quiz
Twelve questions, four options each, no login and no timer. The quiz covers the commands you actually reach for day to day: navigating with pwd, following logs with tail -f, exit codes and $?, redirecting stderr, kill signals, disk usage versus free space, sourcing your .bashrc, and a couple of history tricks like sudo !! that feel like cheating the first time you learn them.
Click an answer and you find out immediately. The right option turns solid black, a wrong pick gets struck through, and a short explanation appears under the question. The explanations are the point of the whole thing. They don’t just confirm the answer; they tell you why the tempting wrong options fail, like why piping ls into grep searches filenames instead of file contents, or why kill -9 should be a last resort rather than a habit.
How scoring works
The progress bar tracks your position and the header keeps a running score. At the end you get your total, a percentage, and a verdict that ranges from encouraging to mildly smug if you hit 12 out of 12. Both the question order and the answer order shuffle on every attempt, so retaking it is a genuine retest rather than a memory exercise.
Who it’s for
Beginners get a map of what to learn next. Experienced users get an honest check on the fundamentals, and question ten catches more sysadmins than anyone likes to admit. Missed the permissions question? The Chmod Permissions Calculator will fix that gap in five minutes. The find question has a whole tool behind it too, the Find Command Composer, and cron scheduling is covered by the Crontab Decoder.
More tools from CommandLinux
Command Line Quiz Chmod Permissions Calculator Crontab Decoder Find Command Composer Systemd Service Generator Tar Command Builder SSH Config Generator Grep/Sed Regex Tester IP Subnet Calculator Bash Script Boilerplate Generator
