NAME

lock − reserve a terminal

SYNOPSIS

lock [ −number ]

DESCRIPTION

Lock requests a password from the user, reads it again for verification, then locks the terminal until the user enters the password.  There are three other conditions under which lock will release a terminal:

• Lock accepts the root password for root as an alternative to the one given by the user. 
• Lock will timeout after some interval of time (15 minutes, by default). 
• A user will the appropriate permission can kill lock’s process. 

Normally, lock will time out after 15 minutes. 

OPTIONS

−number Sets the time limit for lock to number minutes, instead of the default 15. 

3rd Berkeley Distribution  —  May 7, 1986