Access Control:
AMD: (Automounter)
Backups:
Booting:
chmug (chmod, chown, and chgrp in one command)
Curses:
Fax:
Finger:
gpm (Mouse Server)
Log out idle users:
Mail:
Network/Connection Snooping:
Printing:
Samba
strace (trace system calls in a running program)
System Information:
Time/Date: