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LOCK(1)			FreeBSD	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 min-
	     utes.

     -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)
	     virtual terminal.

SEE ALSO
     vidcontrol(1), syscons(4)

HISTORY
     The lock command appeared in 3.0BSD.

FreeBSD	9.3			 July 10, 2002			   FreeBSD 9.3

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY

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