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lock(1)								      lock(1)



NAME

  lock - Requests and verifies a user password

SYNOPSIS

  lock [-number]

  The lock command requests and	reads a	password from a	user, then requests
  the password a second	time to	verify it.

OPTIONS

  -number
      Sets the time-out	period to number minutes. The default value is 15
      minutes.

DESCRIPTION

  The lock command then	locks the terminal and does not	relinquish it until
  the password is received again, unless one of	the following occurs:

    +  The root	password is entered.

    +  The time-out interval is	exceeded.

    +  The command is killed by	a user with appropriate	permission.

  The time-out default value is	15 minutes, but	this can be changed with the
  -number option.

EXAMPLES

   1.  To lock a terminal, enter:
	    lock

       The password is requested twice,	with two different prompts, so the
       system can verify it. If	the password is	not repeated within 15
       minutes,	the command times out.

   2.  To lock a terminal for 10 minutes instead of 15,	enter:
	    lock -10



SEE ALSO

  Commands:  passwd(1)