Linux answers the greatest of questions.

shortcircuit@dodo~
01:35:48 $ whoami
shortcircuit
shortcircuit@dodo~
01:35:50 $ who
shortcircuit tty7         2010-01-30 18:29 (:0)
shortcircuit pts/0        2010-02-02 20:32 (:0.1)
shortcircuit pts/1        2010-02-03 01:28 (:0.1)
shortcircuit pts/3        2010-02-03 01:30 (:0.1)
shortcircuit@dodo~
01:35:52 $ whois shortcircuit
No whois server is known for this kind of object.
shortcircuit@dodo~
01:35:55 $ whatis shortcircuit
shortcircuit: nothing appropriate.
shortcircuit@dodo~
01:35:57 $