Practice mode · free · unlimited · not certifiable
Retrieval
Unscored tasks with hints and instant feedback. Practice results never become credentials.
Short lesson
Docs that stay true · 6 min
One source of truth, owners and review dates on every page, link checks in CI, deprecation banners that point to the replacement.
L1Find the documentterminal
Somewhere in ~/drive is the signed Globex NDA. Enter its path relative to ~/drive.
Sign up to practiseL3Find exact duplicatesterminal
Find the files in ~/drive that are exact duplicates of ~/drive/policies/security.md (same content, different name/location) and delete them, keeping the original.
Sign up to practiseL3List stale documentsterminal
List every .md file in ~/wiki not modified for more than 365 days into ~/stale.txt (paths as find prints them, starting with ~/wiki or /home/...).
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