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.
bressler ubuntu:pts/4 Apr 14 03:27 99:59 ethauvin ubuntu:pts/3 Apr 18 23:04 8:45 ethauvin ubuntu:pts/5 Apr 12 12:16 28:11 jcp centos7:pts/0 Apr 18 11:42 2:53 mall-net centos7:pts/3 Apr 14 17:36 3:03 mall-net ubuntu:pts/6 Apr 19 00:01 :25 markjr ubuntu:pts/1 Apr 18 16:45 10:07 nanook radius:pts/0 Apr 9 21:27 10:50 nanook radius:pts/1 Apr 15 01:23 4:47 nanook ubuntu:pts/0 Apr 18 04:25 1:30 seldon debian:pts/0 Apr 7 03:41 1:58 seldon scientific7:pts/0 Apr 18 00:57 1:59 seldon zorin:pts/0 Apr 18 00:57 1:58 seldon zorin:pts/1 Apr 18 00:57 40:37 seldon zorin:pts/2 Apr 18 00:57 2:03 seldon zorin:pts/3 Apr 18 00:57 1:58 seldon zorin:pts/5 Apr 18 00:57 39:49 seldon zorin:pts/6 Apr 18 00:57 99:59 stosh debian:pts/1 Apr 7 06:39 28:13 stosh debian:pts/9 Apr 10 08:02 4:30 xyzzx debian:pts/10 Apr 11 13:28 99:59