62 lines
2.8 KiB
Groff
62 lines
2.8 KiB
Groff
.\"$Id: chpasswd.8,v 1.17 2004/12/12 20:49:52 kloczek Exp $
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.\" Copyright 1991, Julianne Frances Haugh
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.TH CHPASSWD 8
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.SH NAME
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chpasswd - update passwords in batch mode
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.SH SYNOPSIS
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\fBchpasswd\fR [\fBoptions\fR]
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.SH DESCRIPTION
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\fBchpasswd\fR reads a list of user name and password pairs from standard
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input and uses this information to update a group of existing users. Each
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line is of the format:
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.sp 1
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\fIuser_name\fR:\fIpassword\fR
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.sp 1
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By default the supplied password must be in clear-text. Default encription
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algoritm is DES. Also the password age will be updated, if present.
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.PP
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This command is intended to be used in a large system environment where many
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accounts are created at a single time.
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.SH OPTIONS
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The options which apply to the \fBchpasswd\fR command are:
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.IP "\fB-e\fR, \fB--encrypted\fR"
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Supplied passwords are in encrypted form.
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.IP "\fB-h\fR, \fB--help\fR"
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Display help message and exit.
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.IP "\fB-m\fR, \fB--md5\fR"
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Use MD5 encryption instead DES when the supplied passwords are not encrypted.
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.SH CAVEATS
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Remember keep protected for reading by others fille passed to standard input
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\fBchpasswd\fR command if it contains unencrypted passwords.
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.SH SEE ALSO
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.BR passwd (1),
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.BR newusers (8),
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.BR useradd (8)
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.SH AUTHOR
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Julianne Frances Haugh (jockgrrl@ix.netcom.com)
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