CODE EXAMPLE FOR SHELL

active ssh users in ubuntu

[root@node3 ~]# last -a | grep -i still
deepak   pts/1        Fri May 31 16:58   still logged in    10.0.2.31
root     pts/2        Fri May 31 16:50   still logged in    10.0.2.30
root     pts/0        Fri May 31 09:17   still logged in    10.0.2.2