119 lines
4.1 KiB
XML
119 lines
4.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
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<refentry id='passwd.5'>
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<!-- $Id: passwd.5.xml,v 1.7 2005/06/16 17:59:21 kloczek Exp $ -->
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<refmeta>
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<refentrytitle>passwd</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv id='name'>
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<refname>passwd</refname>
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<refpurpose>The password file</refpurpose>
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</refnamediv>
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<refsect1 id='description'>
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<title>DESCRIPTION</title>
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<para><filename>/etc/passwd</filename> contains various pieces of
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information for each user account. Included is:
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</para>
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<itemizedlist mark='bullet'>
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<listitem>
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<para>login name</para>
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</listitem>
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<listitem>
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<para>optional encrypted password</para>
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</listitem>
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<listitem>
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<para>numerical user ID</para>
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</listitem>
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<listitem>
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<para>numerical group ID</para>
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</listitem>
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<listitem>
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<para>user name or comment field</para>
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</listitem>
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<listitem>
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<para>user home directory</para>
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</listitem>
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<listitem>
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<para>user command interpreter</para>
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</listitem>
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</itemizedlist>
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<para>
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The password field may not be filled if shadow passwords have been
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enabled. If shadow passwords are being used, the encrypted password
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will be found in <filename>/etc/shadow</filename>. The encrypted
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password consists of characters from the 64 characters alphabet a thru
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z, A thru Z, 0 thru 9, \. and /. Optionally it can start with a "$"
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character. This means the encrypted password was generated using
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another (not DES) algorithm. For example if it starts with "$1$" it
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means the MD5-based algorithm was used. Refer to
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<citerefentry><refentrytitle>crypt</refentrytitle>
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<manvolnum>3</manvolnum></citerefentry> for details on how this string
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is interpreted.
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</para>
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<para>The comment field is used by various system utilities, such as
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<citerefentry><refentrytitle>finger</refentrytitle>
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<manvolnum>1</manvolnum></citerefentry>.
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</para>
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<para>The home directory field provides the name of the initial working
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directory. <emphasis remap='B'>Login</emphasis> uses this information
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to set the value of the <envar>$HOME</envar> environmental variable.
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</para>
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<para>
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The command interpreter field provides the name of the user's
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command language interpreter, or the name of the initial program to
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execute. <emphasis remap='B'>Login</emphasis> uses this information
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to set the value of the <envar>$SHELL</envar> environmental variable.
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If this field is empty, it defaults to the value
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<filename>/bin/sh</filename>.
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</para>
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</refsect1>
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<refsect1 id='files'>
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<title>FILES</title>
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<variablelist>
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<varlistentry>
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<term><filename>/etc/passwd</filename></term>
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<listitem>user account information</listitem>
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</varlistentry>
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</variablelist>
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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><citerefentry>
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<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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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>su</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>pwconv</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>pwunconv</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>sulogin</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>
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</para>
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</refsect1>
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<refsect1 id='author'>
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<title>AUTHOR</title>
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<para>Julianne Frances Haugh (jockgrrl@ix.netcom.com)</para>
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</refsect1>
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</refentry>
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