Rwho

     This shows who is logged in to our shell servers allowing you to locate someone to contact them in real time via facilities like ntalk.

bbrace   ubuntu:pts/0  Apr 14 05:00 10:47
billb    centos6:pts/5 Apr 17 18:32 10:38
bressler centos6:pts/3 Apr  8 14:24  5:51
bsaunder centos6:pts/9 Apr 13 13:15 99:59
jal      centos6:pts/2 Apr 18 01:15  4:16
markjr   centos6:pts/1 Apr  7 12:25 15:09
nanook   centos6:pts/8 Apr 18 01:39  2:49
nanook   eskimo:ttyp0  Apr 18 01:39  3:57
rhom     centos6:pts/6 Apr  7 17:54  8:26
stosh    debian:pts/0  Apr 16 11:21 14:16
stosh    debian:pts/1  Apr  7 07:40  6:59