LOCK(1) General Commands Manual LOCK(1)NAME
lock - reserve a terminal
SYNOPSIS
lock [ -p ] [ -t timeout ]
DESCRIPTION
Lock requests a password from the user, reads it again for verification and then will normally not relinquish the terminal until the pass-
word is repeated. There are two other conditions under which it will terminate: it will timeout after some interval of time and it may be
killed by someone with the appropriate permission. The default time limit is 15 minutes, which may be changed with the -t option where
timeout is the time limit in minutes. The -p option causes lock to use the user's current password instead of requesting another one.
3rd Berkeley Distribution February 23, 1989 LOCK(1)
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LOCK(1) BSD General Commands Manual LOCK(1)NAME
lock -- reserve a terminal
SYNOPSIS
lock [-npv] [-t timeout]
DESCRIPTION
The lock utility requests a password from the user, reads it again for verification and then will normally not relinquish the terminal until
the password is repeated. There are two other conditions under which it will terminate: it will timeout after some interval of time and it
may be killed by someone with the appropriate permission.
The following options are available:
-n Do not use a timeout value. Terminal will be locked forever.
-p A password is not requested, instead the user's current login password is used.
-t timeout
The time limit (default 15 minutes) is changed to timeout minutes.
-v Disable switching virtual terminals while this terminal is locked. This option is implemented in a way similar to the -S option of
vidcontrol(1), and thus has the same restrictions. It is only available if the terminal in question is a syscons(4) or vt(4) virtual
terminal.
SEE ALSO vidcontrol(1), syscons(4), vt(4)HISTORY
The lock command appeared in 3.0BSD.
BSD July 10, 2002 BSD
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