[root@lpo-wiki-01 ~]# ./ssh.pl localhost
Linux lpo-wiki-01 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:02 EDT 2007 i686 i686 i386 GNU/Linux
root     pts/0        2008-05-15 07:54 (val.vmsinfo.com)
root     pts/1        2008-05-15 12:11 (val.vmsinfo.com)
root     pts/2        2008-05-18 11:42 (10.41.0.213)
[root@lpo-wiki-01 ~]# ./ssh.pl yoda
cant connect to yoda
[root@lpo-wiki-01 ~]#