FilesystemBeginner~3 min

Stale lock blocking startup

A crashed process left a stale lock file at /tmp/app.lock, and there's a leftover core dump ~/core.1234 wasting space. The service won't start while the lock exists. Clean both up.

Your mission

Remove `/tmp/app.lock`
Remove `~/core.1234`

Everything here is simulated and safe — break things freely. Your progress is tracked on the right and saved in this browser.

player@shellquest — remove-the-lock