// hands-on lab

First shell steps

~15 min

Get comfortable in an ephemeral Linux sandbox — no Docker on the server.

Click Start sandbox to open WebVM (Linux in your browser).

Run: uname -a
Explore: ls / && pwd && whoami
Write a file: echo hello > /tmp/hello.txt && cat /tmp/hello.txt

Tips:

Tab completes paths and commands
Reload sandbox anytime for a clean environment
Nothing here is persisted after reload

// checklist

Run uname -a and note the kernel
Confirm your home with pwd and ls -la
Create /tmp/hello.txt with echo and cat it back

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).