# 2.11BSD#431 - /usr/man/cat1/passwd.0

    PASSWD(1)	    UNIX Programmer's Manual		PASSWD(1)

    NAME
         passwd - change password file information

    SYNOPSIS
         passwd [ user ]

    DESCRIPTION
         Passwd changes the user's password.  First, the user is
         prompted for their old password, and then, if that is
         correct, for the new password.  The new password must be
         entered twice to forestall any typing errors.  The super-
         user is not prompted for the old password.

         Once the password has been verified, passwd uses mkpasswd(8)
         to update the user database.  This is run in the background,
         and, at very large sites could take several minutes.  Until
         this update is completed, the password file is unavailable
         for other updates and the new password will not be available
         to programs.

    FILES
         /etc/master.passwd       the user database

    SEE ALSO
         chpass(1), login(1), passwd(5), mkpasswd(8), vipw(8)
         Robert Morris and Ken Thompson, UNIX password security

    Printed 11/24/99	February 22, 1989			1

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