Shell & Command Line Certification

Pipes, redirection, grep, sed and awk — the one-liners that replace an afternoon of clicking.

  • 10 topic quizzes, 10 questions each
  • Any 2 free, then 10 credits
  • Earn a certificate as you clear topics

Topics

Start with whichever topic you need — there is no fixed order. Any 2 quizzes in this track are free; after that each is 10 credits and stays yours to re-attempt as often as you like.

Quizzes for this track are being written now. The topics below are what it will cover.

  1. 01Shell basics — words, quoting and expansion
  2. 02Redirection and pipes
  3. 03Finding files: find and locate
  4. 04grep and regular expressions
  5. 05sed for stream editing
  6. 06awk for fields and reports
  7. 07sort, uniq, cut, tr and friends
  8. 08Variables, exit codes and conditionals
  9. 09Loops and functions in scripts
  10. 10Writing a safe, reusable shell script
Who it's forStudents and developers who copy shell commands off the internet and would rather understand them.
What you need firstNothing. Each quiz stands on its own, so pick any topic and start there.

How the certificate works

Score well on a quiz and you earn a shareable certificate for it, with your score and rank. Clear topics in any order and collect them — every one is a link you can put in front of someone.

Every question is dual-AI verified, and any 2 quizzes in this track cost nothing.