17 October 2021

w is a command to show who is logged on and what they are doing.
It is usefull in shared machine, like server, and then interact with other people connected.

$ w
 04:28:16 up  1:04,  1 user,  load average: 1,22, 1,99, 3,12
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
test    tty7     :0               03:26    1:01m  8:09   1.47s session

References