xset:tldr:ed0b1

The command "xset b off" is used in Linux and Unix-based systems to disable the system beep or the "bell" sound.

Here is a breakdown of the command:

• "xset": It is a command-line tool in X Window System that allows users to control various X server settings, including sounds.
• "b": It refers to the system beep or the "bell" sound.
• "off": It is an argument passed to the command, which specifies that the bell sound should be turned off.

So, when you run the "xset b off" command, it disables the system bell sound that is played by the system when an alert or error condition occurs. This can be useful if you find the bell sound annoying or distracting.