// hands-on lab
Navigation drills
~12 min
Move, look, and find until it's automatic.
In the shell below:
1. `pwd` — confirm you start at home (~) 2. `ls -la` — read one line fully: permissions, owner, size, name 3. `cd /var/log && ls` — the incident room 4. `cd -` — bounce back home 5. `find ~ -name "*.txt"` — locate your text files 6. `tree ~/projects` — see structure at a glance
// checklist
Sign in to save checklist progress.
Click Start sandbox for an in-browser Linux environment.
No Docker on the server — the sandbox runs in your browser (or an embedded lab host).