99 lines
2.8 KiB
XML
99 lines
2.8 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<refentry id='chpasswd.8'>
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<!-- $Id: chpasswd.8.xml,v 1.19 2006/07/24 05:48:38 kloczek Exp $ -->
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<refmeta>
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<refentrytitle>chpasswd</refentrytitle>
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<manvolnum>8</manvolnum>
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<refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
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</refmeta>
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<refnamediv id='name'>
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<refname>chpasswd</refname>
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<refpurpose>update passwords in batch mode</refpurpose>
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</refnamediv>
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<refsynopsisdiv id='synopsis'>
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<cmdsynopsis>
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<command>chpasswd</command>
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<arg choice='opt'>
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<replaceable>options</replaceable>
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</arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1 id='description'>
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<title>DESCRIPTION</title>
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<para>
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<command>chpasswd</command> reads a list of user name and password
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pairs from standard input and uses this information to update a group
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of existing users. Each line is of the format:
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</para>
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<para>
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<emphasis remap='I'>user_name</emphasis>:<emphasis
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remap='I'>password</emphasis>
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</para>
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<para>
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By default the supplied password must be in clear-text. Default
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encryption algorithm is DES. Also the password age will be updated, if
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present.
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</para>
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<para>
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This command is intended to be used in a large system environment
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where many accounts are created at a single time.
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</para>
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</refsect1>
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<refsect1 id='options'>
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<title>OPTIONS</title>
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<para>
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The options which apply to the <command>chpasswd</command> command
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are:
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</para>
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<variablelist remap='IP'>
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<varlistentry>
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<term><option>-e</option>, <option>--encrypted</option></term>
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<listitem>
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<para>Supplied passwords are in encrypted form.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-h</option>, <option>--help</option></term>
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<listitem>
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<para>Display help message and exit.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-m</option>, <option>--md5</option></term>
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<listitem>
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<para>
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Use MD5 encryption instead of DES when the supplied passwords are
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not encrypted.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id='caveats'>
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<title>CAVEATS</title>
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<para>
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Remember to set permissions or umask to prevent readability of
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unencrypted files by other users.
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</para>
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</refsect1>
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<refsect1 id='see_also'>
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<title>SEE ALSO</title>
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<para>
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<citerefentry>
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<refentrytitle>passwd</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>newusers</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>useradd</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>.
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</para>
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</refsect1>
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</refentry>
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