LOCK(1) — UNIX Programmer’s Manual
NAME
lock − reserve a terminal
SYNOPSIS
lock
DESCRIPTION
Lock requests a password from the user, then prints "LOCKED" on the terminal and refuses to relinquish the terminal until the password is repeated. If the user forgets the password, he has no other recourse but to login elsewhere and kill the lock process.
AUTHOR
Kurt Shoens
BUGS
Should timeout after 15 minutes.
3BSD