SUID

See: setuid

setuid	Ack! I forgot my root password!	UID	su
SGID	sudo	I just spent $175.00 on black silk underwear	Nobody
Suidae	Windows NT Kernel Mode	Including her knees and a dragon made from a sock	Brooks's Law
Pam	traceroute	Pygmy Hog	Goner
file test operator	Lateralus	Ping	ACL
File permissions	ls