pwconv.8

pwdutils是一套密码管理工具

.\" -*- nroff -*-
.\" Copyright (C) 2004 Thorsten Kukuk
.\" Author: Thorsten Kukuk <[e-mail]>
.\"
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License version 2 as
.\" published by the Free Software Foundation.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program; if not, write to the Free Software Foundation,
.\" Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
.\"
.TH pwconv 8 "January 2004" "pwdutils"
.SH NAME
pwconv \- convert to shadow account
.SH SYNOPSIS
.TP 5
\fBpwconv\fR [\fB-P \fIpath\fR]
.SH DESCRIPTION
\fBpwconv\fR installs and updates \fI/etc/shadow\fR with information
from \fI/etc/passwd\fR. It relies on the special password 'x' in the
password field of the account. This value indicates that the password
for the user is already in \fI/etc/shadow\fR and should not be modified.

If \fI/etc/shadow\fR does not exist, \fBpwconv\fR creates this file,
moves the user password to it and creates default aging informations
with the help of the values of \fBPASS_MIN_DAYS\fR, \fBPASS_MAX_DAYS\fR
and \fBPASS_WARN_AGE\fR from \fI/etc/login.defs\fR. The password field
in \fI/etc/passwd/fR is replaced with the special character 'x'.

If the \fI/etc/shadow\fR does exist, entries that are in the
\fI/etc/passwd\fR file and not in the \fI/etc/shadow\fR file will be
added to the \fI/etc/shadow\fR file. Accounts, which only exist in
\fI/etc/passwd\fR, will be added to \fI/etc/shadow\fR. All passwords
from \fI/etc/passwd\fR will be moved to \fI/etc/shadow\fR and replaced
with the special character 'x'.

\fBpwconv\fR can be used for initial conversion and for updates later.
.SH OPTIONS
.TP
.BI "\-P, \-\-path" " path"
The \fIpasswd\fR and \fIshadow\fR files are located below
the specified directory path. \fBpwconv\fR will use this files,
not \fI/etc/passwd\fR and \fI/etc/shadow\fR.
.SH FILES
passwd \- user account information
.br
shadow \- shadow user account information
.SH SEE ALSO
.BR passwd (1),
.BR login.defs (5),
.BR passwd (5),
.BR shadow (5),
.BR pwck (8),
.BR pwunconv (8)
.SH AUTHOR
Thorsten Kukuk <[e-mail]>