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/0 Mar 24 17:06 1:20 chibcha debian:pts/10 Mar 31 11:48 7:21 dld ubuntu:pts/13 Mar 31 15:49 5:17 dld ubuntu:pts/5 Mar 31 15:23 2:46 dld ubuntu:pts/9 Mar 31 15:47 5:16 jcp centos7:pts/1 Mar 25 13:46 6:15 mall-net ubuntu:pts/6 Mar 28 23:30 :58 nanook ubuntu:pts/1 Mar 31 01:01 :09 noelt debian:pts/15 Mar 31 19:52 4:21 seldon debian:pts/0 Mar 19 02:23 seldon debian:pts/1 Mar 19 02:24 15:01 seldon debian:pts/2 Mar 19 02:24 seldon debian:pts/3 Mar 19 02:24 1:21 seldon debian:pts/4 Mar 19 02:24 5:06 seldon debian:pts/5 Mar 19 02:25 99:59 stosh debian:pts/7 Mar 19 08:23 2:18 xero debian:pts/11 Mar 19 21:13 99:59 xyzzx debian:pts/9 Mar 19 19:27 31:30