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+.\" Copyright (c) 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)pwd_mkdb.8	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt PWD_MKDB 8
+.Os
+.Sh NAME
+.Nm pwd_mkdb
+.Nd "generate the password databases"
+.Sh SYNOPSIS
+.Nm pwd_mkdb
+.Op Fl p
+.Ar file
+.Sh DESCRIPTION
+.Nm Pwd_mkdb
+creates
+.Xr db 3
+style secure and insecure databases for the specified file.
+These databases are then installed into
+.Dq Pa /etc/spwd.db
+and
+.Dq Pa /etc/pwd.db
+respectively.
+The file is installed into
+.Dq Pa /etc/master.passwd .
+The file must be in the correct format (see
+.Xr passwd 5 ) .
+It is important to note that the format used in this system is
+different from the historic Version 7 style format.
+.Pp
+The options are as follows:
+.Bl -tag -width flag
+.It Fl p
+Create a Version 7 style password file and install it into
+.Dq Pa /etc/passwd .
+.El
+.Pp
+The two databases differ in that the secure version contains the user's 
+encrypted password and the insecure version has an asterisk (``*'')
+.Pp
+The databases are used by the C library password routines (see
+.Xr getpwent 3 ) .
+.Pp
+.Nm Pwd_mkdb
+exits zero on success, non-zero on failure.
+.Sh FILES
+.Bl -tag -width Pa -compact
+.It Pa /var/db/pwd.db
+The insecure password database file.
+.It Pa /var/db/pwd.db.tmp
+A temporary file.
+.It Pa /var/db/spwd.db
+The secure password database file.
+.It Pa /var/db/spwd.db.tmp
+A temporary file.
+.It Pa /etc/master.passwd
+The current password file.
+.It Pa /etc/passwd
+A Version 7 format password file.
+.El
+.Sh BUGS
+Because of the necessity for atomic update of the password files,
+.Nm pwd_mkdb
+uses
+.Xr rename 2
+to install them.
+This, however, requires that the file specified on the command line live
+on the same file system as the
+.Dq Pa /etc
+directory.
+.Pp
+There are the obvious races with multiple people running
+.Nm pwd_mkdb
+on different password files at the same time.
+The front-ends to 
+.Nm pwd_mkdb ,
+.Xr chpass 1 ,
+.Xr passwd 1
+and
+.Xr vipw 8 ,
+handle the locking necessary to avoid this problem.
+.Sh COMPATIBILITY
+Previous versions of the system had a program similar to
+.Nm pwd_mkdb ,
+.Xr mkpasswd 8 ,
+which built
+.Xr dbm 3
+style databases for the password file but depended on the calling programs
+to install them.
+The program was renamed in order that previous users of the program
+not be surprised by the changes in functionality.
+.Sh SEE ALSO
+.Xr chpass 1 ,
+.Xr passwd 1 ,
+.Xr db 3 ,
+.Xr getpwent 3 ,
+.Xr passwd 5 ,
+.Xr vipw 8