tim@box1:~$ wtf
The program 'wtf' is currently not installed.
You can install it by typing: sudo apt-get install bsdgames
wtf: command not found
tim@box1:~$ sudo apt-get install bsdgames
tim@box1:~$ wtf
usage: wtf [-f dbfile] [-t type] [is] <acronym>
tim@box1:~$ wtf is wtf
WTF: {what,where,who,why} the fuck