dm-tool:tldr:c0471
dm-tool: Lock the current session.
$ dm-tool lock
try on your machine
The command "dm-tool lock" is used to lock the current session on a Linux desktop environment using the Display Manager (DM) tool. When executed, this command prompts the user to enter their password to unlock the session and regain access to the desktop.
By locking the session, the dm-tool prevents any unauthorized access to the user's computer while they are away. It is commonly used when stepping away from the computer temporarily or in a shared workplace environment to protect sensitive data and ensure privacy and security.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.