FreeBSD Manual Pages
LOCK(1) 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 ver- ification 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) or vt(4) virtual terminal. EXAMPLES Lock the terminal for 5 minutes, disable switching virtual terminals and require the user's login password to unlock: $ lock -p -t 5 -v SEE ALSO vidcontrol(1), syscons(4), vt(4) HISTORY The lock command appeared in 3.0BSD. FreeBSD ports 15.1 December 11, 2020 LOCK(1)
NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | HISTORY
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