How to end all processes using kill

The kill command can be used to end all the processes that are running on the system in one shot.

Note: This is not the recommended way of killing the processes, please use it only when needed.

Note that this will kill the gdm too causing a logout of the system . The gdm will restart itself

The options to be passed to kill to end all the processes are -1 -9 i.e.

kill -9 -1