logging out a user

On Fri, 9 Jan 2004, Bart Garst wrote:

> I was wondering how I would go about logging off a user.
>
> Scenario:
> I have a user logged in named foo. I want to log him off. As root, what
> command would I use to accomplish this?

There are many ways to accomplish this, but here's an example:

root@server:~# w
 10:25:58 up 153 days, 18:24,  1 user,  load average: 0.01, 0.08, 0.11
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU  WHAT
root     pts/1    10.1.1.100       10:25    0.00s  0.04s  0.04s  w

root@server:~# ps aux | grep pts/1
root     17864  0.0  0.1  5356 1540 ?        S    10:25   0:00 sshd:
root@pts/1
root     17866  0.0  0.1  2100 1176 pts/1    S    10:25   0:00 -bash
root     17879  0.0  0.1  3132 1296 pts/1    R    10:26   0:00 ps aux
root     17880  0.0  0.0  1404  488 pts/1    S    10:26   0:00 grep pts/1
root@server:~# kill 17864

Bye-bye user session

Note: this is pretty rude to the user, so you'll want to pipe a warning to
him/her first. Or if you mean to be rude then I guess this is fine. :-)