xset:tldr:99b17

The command "xset s off" is used in Linux and Unix-like operating systems to disable the screen saver feature.

In these systems, a screen saver is a program or animation that is triggered after a period of user inactivity. It activates to prevent screen burn-in on older CRT monitors and to save power on modern display technologies.

The "xset" command is a utility to modify various X Server settings, and the "s" option is used to control the screen saver parameters.

By running "xset s off", the screen saver function is turned off, which means the screen will no longer lock or display any animations after a period of inactivity. This can be useful in situations where you don't want the screen to turn off or lock automatically, such as when watching a movie or during a presentation.