[xubuntu-users] Detecting login name after su

Peter Flynn peter at silmaril.ie
Fri Oct 4 20:56:42 UTC 2013


On 10/04/2013 09:42 PM, Kevin O'Gorman wrote:
[...]
> w is a new one on me.  Interesting, and it has the info, but I can't
> rely on getting it the way shown:
> kevin at treat:~$ sudo su -
> [sudo] password for kevin:
> root at treat:~# w -u | grep 'w -u$'
> root at treat:~# w -u
>  13:40:56 up 3 days,  6:48,  1 user,  load average: 2.75, 2.40, 2.23
> USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
> kevin    tty7                      Tue06    3days  3:35m  0.01s
> /bin/sh /etc/xdg/xfce4/xinitrc -- /etc/X11/xinit/xs
> root at treat:~#

Hmm. On my systems the last command typed by the user is shown under the
WHAT column:

peter at pentacle:~/$ w -u
 21:54:46 up  1:30,  2 users,  load average: 0.52, 0.64, 0.51
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
peter    pts/0    :0               20:26    6.00s  0.25s  0.00s w -u
peter    pts/1    :0.0             21:52    2:30   0.22s  0.22s bash
peter at pentacle:~/$

Perhaps this is a version or security issue.

///Peter




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