Run mkdir lab.
mkdir lab
Create a small operational runbook in simulated nano.
Nano and editingmkdirnanocat
Click any instruction for the command details, the why, and the common mistake to avoid.
Run mkdir lab.
mkdir lab
Run nano lab/runbook.md.
nano lab/runbook.md
Run cat lab/runbook.md.
cat lab/runbook.md
Create a free account to sync completed lessons, XP, streaks, course status, and your next lesson across sessions.
Checking account status...
Progress sync is idle.
Progress sync stores completion IDs, scores, streaks, badges, and game settings. Terminal contents, editor snippets, lab scratch, email, and real names are never published on leaderboards or share cards.
Create and verify a runbook file.
Save text in nano before running cat.
Written runbooks lower mistakes during stressful operations.
mkdir <name>
Create a folder.
nano <file>
Open a simulated nano editor.
cat <file>
Print text file contents.