What if you don’t know someone’s login name? finger is sometimes smart enough to find users from only their first name or a portion of their name. For example, if someone were looking for me, only knowing that my name was Linda Mui and I worked at http://ora.com, he or she might type:
% finger [email protected] and see: [ora.com] Login name: lmui In real life: Linda Mui Directory: /home/lmui Shell: /bin/tcsh On since Oct 20 09:43:14 on ttyr5 from opal:0.0 7 minutes 14 seconds Idle Time Mail last read Thu Oct 20 15:06:24 1994 No Plan. Login name: peter In real life: Peter Mui Directory: /home/peter Shell: /bin/tcsh Last login Thu Oct 20 08:33 on ttyqa from ora-east-nb.ora. New mail received Thu Oct 20 15:51:38 1994; unread since Thu Oct 20 08:33:25 1994 No Plan.
From here, you can tell that there are two Muis with accounts at http://ora.com, me and my brother Peter. And my login name is lmui.