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   Nov 18 06:37
kevin    eskimo:ttyp0   Nov 17 01:06 29:35
nanook   centos6:pts/13 Nov 18 04:35  2:21
nanook   eskimo:ttyp1   Nov 13 16:43  9:34
root     mxlinux:pts/0  Nov 18 03:52  2:48
root     zorin:pts/8    Nov 18 04:06  2:46