2007-10-07 17:16:16 +05:30
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<?xml version="1.0" encoding="UTF-8"?>
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2008-10-11 17:14:43 +05:30
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<!--
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Copyright (c) 1989 - 1990, Julianne Frances Haugh
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Copyright (c) 2007 - 2008, Nicolas François
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All rights reserved.
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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. The name of the copyright holders or contributors may not be used to
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endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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-->
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* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY CONSOLE SYSTEM "login.defs.d/CONSOLE.xml">
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<!ENTITY CONSOLE_GROUPS SYSTEM "login.defs.d/CONSOLE_GROUPS.xml">
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<!ENTITY DEFAULT_HOME SYSTEM "login.defs.d/DEFAULT_HOME.xml">
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<!ENTITY ENV_HZ SYSTEM "login.defs.d/ENV_HZ.xml">
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<!ENTITY ENVIRON_FILE SYSTEM "login.defs.d/ENVIRON_FILE.xml">
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<!ENTITY ENV_PATH SYSTEM "login.defs.d/ENV_PATH.xml">
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<!ENTITY ENV_SUPATH SYSTEM "login.defs.d/ENV_SUPATH.xml">
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<!ENTITY ENV_TZ SYSTEM "login.defs.d/ENV_TZ.xml">
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<!ENTITY LOGIN_STRING SYSTEM "login.defs.d/LOGIN_STRING.xml">
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<!ENTITY MAIL_CHECK_ENAB SYSTEM "login.defs.d/MAIL_CHECK_ENAB.xml">
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<!ENTITY MAIL_DIR SYSTEM "login.defs.d/MAIL_DIR.xml">
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<!ENTITY QUOTAS_ENAB SYSTEM "login.defs.d/QUOTAS_ENAB.xml">
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<!ENTITY SULOG_FILE SYSTEM "login.defs.d/SULOG_FILE.xml">
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<!ENTITY SU_NAME SYSTEM "login.defs.d/SU_NAME.xml">
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<!ENTITY SU_WHEEL_ONLY SYSTEM "login.defs.d/SU_WHEEL_ONLY.xml">
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<!ENTITY SYSLOG_SU_ENAB SYSTEM "login.defs.d/SYSLOG_SU_ENAB.xml">
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<!ENTITY USERGROUPS_ENAB SYSTEM "login.defs.d/USERGROUPS_ENAB.xml">
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]>
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<refentry id='su.1'>
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2007-11-11 05:16:11 +05:30
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<!-- $Id$ -->
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<refmeta>
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<refentrytitle>su</refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo class="sectdesc">User Commands</refmiscinfo>
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</refmeta>
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<refnamediv id='name'>
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<refname>su</refname>
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<refpurpose>change user ID or become superuser</refpurpose>
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</refnamediv>
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<refsynopsisdiv id='synopsis'>
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<cmdsynopsis>
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<command>su</command>
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<arg choice='opt'>
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<replaceable>options</replaceable>
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</arg>
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<arg choice='opt'>
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2007-10-07 17:17:01 +05:30
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<arg choice='plain'>
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2008-11-23 05:46:10 +05:30
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<replaceable>username</replaceable>
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2007-10-07 17:17:01 +05:30
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</arg>
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2007-10-07 17:16:16 +05:30
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</arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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2007-10-07 17:17:01 +05:30
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2007-10-07 17:16:16 +05:30
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<refsect1 id='description'>
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<title>DESCRIPTION</title>
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2007-10-07 17:17:01 +05:30
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<para>
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2007-10-07 20:06:51 +05:30
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The <command>su</command> command is used to become another user during
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a login session. Invoked without a <option>username</option>,
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2007-10-07 17:17:33 +05:30
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<command>su</command> defaults to
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2007-10-07 20:06:51 +05:30
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becoming the superuser. The optional argument <option>-</option> may
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2007-10-07 17:16:16 +05:30
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be used to provide an environment similar to what the user would
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expect had the user logged in directly.
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</para>
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2007-10-07 17:17:01 +05:30
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<para>
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Additional arguments may be provided after the username, in which case
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2007-10-07 17:17:22 +05:30
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they are supplied to the user's login shell. In particular, an
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2007-10-07 17:17:01 +05:30
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argument of <option>-c</option> will cause the next argument to be
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2007-10-07 17:16:16 +05:30
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treated as a command by most command interpreters. The command will be
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executed by the shell specified in <filename>/etc/passwd</filename>
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for the target user.
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</para>
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2007-10-07 17:17:01 +05:30
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2007-10-07 17:17:11 +05:30
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<para>
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You can use the <option>--</option> argument to separate
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<command>su</command> options from the arguments supplied to the shell.
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</para>
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2007-10-07 17:16:16 +05:30
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<para>The user will be prompted for a password, if appropriate. Invalid
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passwords will produce an error message. All attempts, both valid and
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2007-10-07 17:17:22 +05:30
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invalid, are logged to detect abuse of the system.
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2007-10-07 17:16:16 +05:30
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</para>
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2007-10-07 17:17:01 +05:30
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<para>
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The current environment is passed to the new shell. The value of
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2007-10-07 17:17:11 +05:30
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<envar>$PATH</envar> is reset to <filename>/bin:/usr/bin</filename>
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for normal users, or <filename>/sbin:/bin:/usr/sbin:/usr/bin</filename>
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2007-10-07 20:06:51 +05:30
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for the superuser. This may be changed with the
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2009-06-04 22:58:09 +05:30
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<option>ENV_PATH</option> and <option>ENV_SUPATH</option>
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2007-10-07 17:17:11 +05:30
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definitions in <filename>/etc/login.defs</filename>.
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2007-10-07 17:16:16 +05:30
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</para>
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2007-10-07 17:17:01 +05:30
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<para>
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A subsystem login is indicated by the presence of a "*" as the first
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character of the login shell. The given home directory will be used as
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the root of a new file system which the user is actually logged into.
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2007-10-07 17:16:16 +05:30
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</para>
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</refsect1>
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2007-10-07 17:17:01 +05:30
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2007-10-07 17:17:11 +05:30
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<refsect1 id='options'>
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<title>OPTIONS</title>
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<para>The options which apply to the <command>su</command> command are:
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</para>
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<variablelist remap='IP'>
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2007-10-07 17:17:22 +05:30
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<varlistentry>
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<term>
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<option>-c</option>, <option>--command</option>
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2007-10-07 20:06:51 +05:30
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<replaceable>COMMAND</replaceable>
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2007-10-07 17:17:22 +05:30
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</term>
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<listitem>
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<para>
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Specify a command that will be invoked by the shell using its
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<option>-c</option>.
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</para>
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</listitem>
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</varlistentry>
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2007-10-07 17:17:11 +05:30
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<varlistentry>
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<term>
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<option>-</option>, <option>-l</option>, <option>--login</option>
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</term>
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<listitem>
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<para>
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Provide an environment similar to what the user would expect had
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the user logged in directly.
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</para>
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<para>
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When <option>-</option> is used, it must be specified as the last
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<command>su</command> option.
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The other forms (<option>-l</option> and <option>--login</option>)
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do not have this restriction.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<option>-s</option>, <option>--shell</option>
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<replaceable>SHELL</replaceable>
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</term>
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<listitem>
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<para>The shell that will be invoked.</para>
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<para>
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2007-10-07 20:06:51 +05:30
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The invoked shell is chosen from (highest priority first):
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2009-06-04 22:58:09 +05:30
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<!--This should be an orderedlist, but lists inside another
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list does not work well with current docbook.
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- nekral - 2009.06.03 -->
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<variablelist>
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<varlistentry><term></term><listitem>
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2007-10-07 20:06:51 +05:30
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<para>The shell specified with --shell.</para>
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2009-06-04 22:58:09 +05:30
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</listitem></varlistentry>
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<varlistentry><term></term><listitem>
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2007-10-07 17:17:11 +05:30
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<para>
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If <option>--preserve-environment</option> is used, the
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shell specified by the <envar>$SHELL</envar> environment
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variable.
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</para>
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2009-06-04 22:58:09 +05:30
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</listitem></varlistentry>
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<varlistentry><term></term><listitem>
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2007-10-07 17:17:11 +05:30
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<para>
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2007-10-07 17:17:33 +05:30
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The shell indicated in the <filename>/etc/passwd</filename>
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entry for the target user.
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2007-10-07 17:17:11 +05:30
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</para>
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2009-06-04 22:58:09 +05:30
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</listitem></varlistentry>
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<varlistentry><term></term><listitem>
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<para><filename>/bin/sh</filename> if a shell could not be
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found by any above method.</para>
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</listitem></varlistentry>
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</variablelist>
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2007-10-07 17:17:11 +05:30
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</para>
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<para>
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If the target user has a restricted shell (i.e. the shell field of
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this user's entry in <filename>/etc/passwd</filename> is not
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2007-10-07 20:06:51 +05:30
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listed in <filename>/etc/shell</filename>), then the
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2007-10-07 17:17:11 +05:30
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<option>--shell</option> option or the <envar>$SHELL</envar>
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2007-10-07 20:06:51 +05:30
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environment variable won't be taken into account, unless
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<command>su</command> is called by root.
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2007-10-07 17:17:11 +05:30
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<option>-m</option>, <option>-p</option>,
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<option>--preserve-environment</option>
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</term>
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<listitem>
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2009-06-04 22:58:09 +05:30
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<para>
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Preserve the current environment, except for:
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<variablelist>
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<varlistentry>
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<term><envar>$PATH</envar></term>
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<listitem>
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<para>
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reset according to the
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<filename>/etc/login.defs</filename> options
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<option>ENV_PATH</option> or
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<option>ENV_SUPATH</option> (see below);
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><envar>$IFS</envar></term>
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<listitem>
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<para>
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reset to
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<quote><space><tab><newline></quote>,
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if it was set.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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2007-10-07 17:17:11 +05:30
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<para>
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If the target user has a restricted shell, this option has no
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effect (unless <command>su</command> is called by root).
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</para>
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2009-06-04 22:58:09 +05:30
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<para>
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Note that the default behavior for the environment is the
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following:
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<variablelist>
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<varlistentry><term></term><listitem>
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<para>
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|
The <envar>$HOME</envar>, <envar>$SHELL</envar>,
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<envar>$USER</envar>, <envar>$LOGNAME</envar>,
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<envar>$PATH</envar>, and <envar>$IFS</envar>
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environment variables are reset.
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</para>
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</listitem>
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</varlistentry>
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2009-06-12 01:31:21 +05:30
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<varlistentry><term></term><listitem>
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<para>
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If <option>--login</option> is not used, the
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environment is copied, except for the variables above.
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</para>
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</listitem>
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</varlistentry>
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2009-06-04 22:58:09 +05:30
|
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<varlistentry><term></term><listitem>
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<para>
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|
If <option>--login</option> is used, the
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<envar>$TERM</envar>, <envar>$COLORTERM</envar>,
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|
|
<envar>$DISPLAY</envar>, and
|
|
|
|
<envar>$XAUTHORITY</envar> environment variables are
|
2009-06-12 01:31:21 +05:30
|
|
|
copied if they were set.
|
2009-06-04 22:58:09 +05:30
|
|
|
</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
<varlistentry condition="no_pam"><term></term><listitem>
|
|
|
|
<para>
|
|
|
|
If <option>--login</option> is used, the
|
|
|
|
<envar>$TZ</envar>, <envar>$HZ</envar>, and
|
|
|
|
<envar>$MAIL</envar> environment
|
|
|
|
variables are set according to the
|
|
|
|
<filename>/etc/login.defs</filename>
|
|
|
|
options <option>ENV_TZ</option>,
|
|
|
|
<option>ENV_HZ</option>, <option>MAIL_DIR</option>, and
|
|
|
|
<option>MAIL_FILE</option> (see below).
|
|
|
|
</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
2009-06-12 01:31:21 +05:30
|
|
|
<varlistentry condition="no_pam"><term></term><listitem>
|
|
|
|
<para>
|
|
|
|
If <option>--login</option> is used, other environment
|
|
|
|
variables might be set by the
|
|
|
|
<option>ENVIRON_FILE</option> file (see below).
|
|
|
|
</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
<varlistentry condition="pam"><term></term><listitem>
|
2009-06-04 22:58:09 +05:30
|
|
|
<para>
|
2009-06-12 01:31:21 +05:30
|
|
|
Other environment might be set by PAM modules.
|
2009-06-04 22:58:09 +05:30
|
|
|
</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</para>
|
2007-10-07 17:17:11 +05:30
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</refsect1>
|
|
|
|
|
2007-10-07 17:16:16 +05:30
|
|
|
<refsect1 id='caveats'>
|
|
|
|
<title>CAVEATS</title>
|
|
|
|
<para>
|
|
|
|
This version of <command>su</command> has many compilation options,
|
|
|
|
only some of which may be in use at any particular site.
|
|
|
|
</para>
|
|
|
|
</refsect1>
|
2007-10-07 17:17:01 +05:30
|
|
|
|
* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
|
|
|
<refsect1 id='configuration'>
|
|
|
|
<title>CONFIGURATION</title>
|
|
|
|
<para>
|
|
|
|
The following configuration variables in
|
|
|
|
<filename>/etc/login.defs</filename> change the behavior of this
|
|
|
|
tool:
|
|
|
|
</para>
|
|
|
|
<variablelist>
|
|
|
|
&CONSOLE;
|
|
|
|
&CONSOLE_GROUPS;
|
|
|
|
&DEFAULT_HOME;
|
* man/pwconv.8.xml: Fix typos.
* man/chpasswd.8.xml, man/chgpasswd.8.xml: Document the NONE crypt
method.
* man/login.defs.d/MAIL_DIR.xml: Add comment regarding useradd not
using MAIL_FILE.
* man/login.defs.d/ERASECHAR.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/CONSOLE_GROUPS.xml, man/login.defs.d/ENV_HZ.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml:
These variables are also used by some tools when compiled with PAM
support.
* man/login.defs.d/ENV_HZ.xml: Add note that it is only used by
sulogin when compiled with PAM support.
* man/login.defs.d/ENV_SUPATH.xml: Typos: ENV_PATH -> ENV_SUPATH,
and mention sbin in the path.
* man/login.defs.d/LOGIN_STRING.xml: Fix typo: confition ->
condition.
* man/sg.1.xml: Add CONFIGURATION section (SYSLOG_SG_ENAB).
* man/su.1.xml: ENV_HZ, LOGIN_STRING, MAIL_DIR, USERGROUPS_ENAB
are only used when su is compiled without PAM support.
* man/login.defs.5.xml: Added variables: OBSCURE_CHECKS_ENAB
PASS_ALWAYS_WARN PASS_CHANGE_TRIES SULOG_FILE SU_NAME
SU_WHEEL_ONLY SYSLOG_SG_ENAB SYSLOG_SU_ENAB.
* man/login.defs.5.xml: ENVIRON_FILE is only used when compiled
without PAM support.
* man/login.defs.5.xml: sulogin uses variables even when compiled
with PAM support.
* man/login.1.xml: ENV_HZ ENV_PATH ENV_SUPATH MAIL_DIR UMASK are
only used when login is not compiled with PAM support.
2007-12-09 20:20:14 +05:30
|
|
|
<phrase condition="no_pam">&ENV_HZ;</phrase>
|
* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
|
|
|
&ENVIRON_FILE;
|
|
|
|
&ENV_PATH;
|
|
|
|
&ENV_SUPATH;
|
|
|
|
&ENV_TZ;
|
* man/pwconv.8.xml: Fix typos.
* man/chpasswd.8.xml, man/chgpasswd.8.xml: Document the NONE crypt
method.
* man/login.defs.d/MAIL_DIR.xml: Add comment regarding useradd not
using MAIL_FILE.
* man/login.defs.d/ERASECHAR.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/CONSOLE_GROUPS.xml, man/login.defs.d/ENV_HZ.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml:
These variables are also used by some tools when compiled with PAM
support.
* man/login.defs.d/ENV_HZ.xml: Add note that it is only used by
sulogin when compiled with PAM support.
* man/login.defs.d/ENV_SUPATH.xml: Typos: ENV_PATH -> ENV_SUPATH,
and mention sbin in the path.
* man/login.defs.d/LOGIN_STRING.xml: Fix typo: confition ->
condition.
* man/sg.1.xml: Add CONFIGURATION section (SYSLOG_SG_ENAB).
* man/su.1.xml: ENV_HZ, LOGIN_STRING, MAIL_DIR, USERGROUPS_ENAB
are only used when su is compiled without PAM support.
* man/login.defs.5.xml: Added variables: OBSCURE_CHECKS_ENAB
PASS_ALWAYS_WARN PASS_CHANGE_TRIES SULOG_FILE SU_NAME
SU_WHEEL_ONLY SYSLOG_SG_ENAB SYSLOG_SU_ENAB.
* man/login.defs.5.xml: ENVIRON_FILE is only used when compiled
without PAM support.
* man/login.defs.5.xml: sulogin uses variables even when compiled
with PAM support.
* man/login.1.xml: ENV_HZ ENV_PATH ENV_SUPATH MAIL_DIR UMASK are
only used when login is not compiled with PAM support.
2007-12-09 20:20:14 +05:30
|
|
|
<phrase condition="no_pam">&LOGIN_STRING;</phrase>
|
* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
|
|
|
&MAIL_CHECK_ENAB;
|
* man/pwconv.8.xml: Fix typos.
* man/chpasswd.8.xml, man/chgpasswd.8.xml: Document the NONE crypt
method.
* man/login.defs.d/MAIL_DIR.xml: Add comment regarding useradd not
using MAIL_FILE.
* man/login.defs.d/ERASECHAR.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/CONSOLE_GROUPS.xml, man/login.defs.d/ENV_HZ.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml:
These variables are also used by some tools when compiled with PAM
support.
* man/login.defs.d/ENV_HZ.xml: Add note that it is only used by
sulogin when compiled with PAM support.
* man/login.defs.d/ENV_SUPATH.xml: Typos: ENV_PATH -> ENV_SUPATH,
and mention sbin in the path.
* man/login.defs.d/LOGIN_STRING.xml: Fix typo: confition ->
condition.
* man/sg.1.xml: Add CONFIGURATION section (SYSLOG_SG_ENAB).
* man/su.1.xml: ENV_HZ, LOGIN_STRING, MAIL_DIR, USERGROUPS_ENAB
are only used when su is compiled without PAM support.
* man/login.defs.5.xml: Added variables: OBSCURE_CHECKS_ENAB
PASS_ALWAYS_WARN PASS_CHANGE_TRIES SULOG_FILE SU_NAME
SU_WHEEL_ONLY SYSLOG_SG_ENAB SYSLOG_SU_ENAB.
* man/login.defs.5.xml: ENVIRON_FILE is only used when compiled
without PAM support.
* man/login.defs.5.xml: sulogin uses variables even when compiled
with PAM support.
* man/login.1.xml: ENV_HZ ENV_PATH ENV_SUPATH MAIL_DIR UMASK are
only used when login is not compiled with PAM support.
2007-12-09 20:20:14 +05:30
|
|
|
<phrase condition="no_pam">&MAIL_DIR;</phrase>
|
* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
|
|
|
"AS_ENAB;
|
|
|
|
&SULOG_FILE;
|
|
|
|
&SU_NAME;
|
|
|
|
&SU_WHEEL_ONLY;
|
|
|
|
&SYSLOG_SU_ENAB;
|
* man/pwconv.8.xml: Fix typos.
* man/chpasswd.8.xml, man/chgpasswd.8.xml: Document the NONE crypt
method.
* man/login.defs.d/MAIL_DIR.xml: Add comment regarding useradd not
using MAIL_FILE.
* man/login.defs.d/ERASECHAR.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/CONSOLE_GROUPS.xml, man/login.defs.d/ENV_HZ.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml:
These variables are also used by some tools when compiled with PAM
support.
* man/login.defs.d/ENV_HZ.xml: Add note that it is only used by
sulogin when compiled with PAM support.
* man/login.defs.d/ENV_SUPATH.xml: Typos: ENV_PATH -> ENV_SUPATH,
and mention sbin in the path.
* man/login.defs.d/LOGIN_STRING.xml: Fix typo: confition ->
condition.
* man/sg.1.xml: Add CONFIGURATION section (SYSLOG_SG_ENAB).
* man/su.1.xml: ENV_HZ, LOGIN_STRING, MAIL_DIR, USERGROUPS_ENAB
are only used when su is compiled without PAM support.
* man/login.defs.5.xml: Added variables: OBSCURE_CHECKS_ENAB
PASS_ALWAYS_WARN PASS_CHANGE_TRIES SULOG_FILE SU_NAME
SU_WHEEL_ONLY SYSLOG_SG_ENAB SYSLOG_SU_ENAB.
* man/login.defs.5.xml: ENVIRON_FILE is only used when compiled
without PAM support.
* man/login.defs.5.xml: sulogin uses variables even when compiled
with PAM support.
* man/login.1.xml: ENV_HZ ENV_PATH ENV_SUPATH MAIL_DIR UMASK are
only used when login is not compiled with PAM support.
2007-12-09 20:20:14 +05:30
|
|
|
<phrase condition="no_pam">&USERGROUPS_ENAB;</phrase>
|
* man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
man/login.defs.d/FAIL_DELAY.xml,
man/login.defs.d/FAILLOG_ENAB.xml,
man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
man/login.defs.d/HUSHLOGIN_FILE.xml,
man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
man/login.defs.d/NOLOGINS_FILE.xml,
man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
man/login.defs.d/PASS_ALWAYS_WARN.xml,
man/login.defs.d/PASS_CHANGE_TRIES.xml,
man/login.defs.d/PASS_MAX_LEN.xml,
man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
man/login.defs.d/SYSLOG_SG_ENAB.xml,
man/login.defs.d/SYSLOG_SU_ENAB.xml,
man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
distributed files.
2007-12-09 04:54:40 +05:30
|
|
|
</variablelist>
|
|
|
|
</refsect1>
|
|
|
|
|
2007-10-07 17:16:16 +05:30
|
|
|
<refsect1 id='files'>
|
|
|
|
<title>FILES</title>
|
|
|
|
<variablelist>
|
|
|
|
<varlistentry>
|
2007-10-07 17:17:01 +05:30
|
|
|
<term><filename>/etc/passwd</filename></term>
|
|
|
|
<listitem>
|
2007-10-07 17:17:33 +05:30
|
|
|
<para>User account information.</para>
|
2007-10-07 17:17:01 +05:30
|
|
|
</listitem>
|
2007-10-07 17:16:16 +05:30
|
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
2007-10-07 17:17:01 +05:30
|
|
|
<term><filename>/etc/shadow</filename></term>
|
|
|
|
<listitem>
|
2007-10-07 17:17:33 +05:30
|
|
|
<para>Secure user account information.</para>
|
2007-10-07 17:17:01 +05:30
|
|
|
</listitem>
|
2007-10-07 17:16:16 +05:30
|
|
|
</varlistentry>
|
2009-06-04 22:58:09 +05:30
|
|
|
<varlistentry>
|
|
|
|
<term><filename>/etc/login.defs</filename></term>
|
|
|
|
<listitem>
|
|
|
|
<para>Shadow password suite configuration.</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
2007-10-07 17:16:16 +05:30
|
|
|
</variablelist>
|
|
|
|
</refsect1>
|
2007-10-07 17:17:01 +05:30
|
|
|
|
2009-09-09 02:09:15 +05:30
|
|
|
<refsect1 id='exit_values'>
|
|
|
|
<title>EXIT VALUES</title>
|
|
|
|
<para>
|
|
|
|
On success, <command>su</command> returns the exit value of the
|
|
|
|
command it executed.
|
|
|
|
</para>
|
|
|
|
<para>
|
|
|
|
If this command was terminated by a signal, <command>su</command>
|
|
|
|
returns the number of this signal plus 128.
|
|
|
|
</para>
|
|
|
|
<para>
|
|
|
|
If su has to kill the command (because it was asked to terminate,
|
|
|
|
and the command did not terminate in time), <command>su</command>
|
|
|
|
returns 255.
|
|
|
|
</para>
|
|
|
|
<para>
|
|
|
|
Some exit values from <command>su</command> are independent from the
|
|
|
|
executed command:
|
|
|
|
<variablelist>
|
|
|
|
<varlistentry>
|
|
|
|
<term><replaceable>0</replaceable></term>
|
|
|
|
<listitem>
|
|
|
|
<para>success (<option>--help</option> only)</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
|
|
<term><replaceable>1</replaceable></term>
|
|
|
|
<listitem>
|
|
|
|
<para>System or authentication failure</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
|
|
<term><replaceable>126</replaceable></term>
|
|
|
|
<listitem>
|
|
|
|
<para>The requested command was not found</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
|
|
<term><replaceable>127</replaceable></term>
|
|
|
|
<listitem>
|
|
|
|
<para>The requested command could not be executed</para>
|
|
|
|
</listitem>
|
|
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</para>
|
|
|
|
</refsect1>
|
|
|
|
|
2007-10-07 17:16:16 +05:30
|
|
|
<refsect1 id='see_also'>
|
|
|
|
<title>SEE ALSO</title>
|
2007-10-07 17:16:25 +05:30
|
|
|
<para><citerefentry>
|
2007-10-07 17:17:01 +05:30
|
|
|
<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
|
2007-10-07 17:16:16 +05:30
|
|
|
</citerefentry>,
|
|
|
|
<citerefentry>
|
2007-10-07 17:17:01 +05:30
|
|
|
<refentrytitle>login.defs</refentrytitle><manvolnum>5</manvolnum>
|
2007-10-07 17:16:16 +05:30
|
|
|
</citerefentry>,
|
2007-10-07 20:06:51 +05:30
|
|
|
<citerefentry>
|
|
|
|
<refentrytitle>sg</refentrytitle><manvolnum>1</manvolnum>
|
|
|
|
</citerefentry>,
|
2007-10-07 17:16:16 +05:30
|
|
|
<citerefentry>
|
2007-10-07 17:17:01 +05:30
|
|
|
<refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
|
2009-06-04 22:58:09 +05:30
|
|
|
</citerefentry>.
|
2007-10-07 17:16:16 +05:30
|
|
|
</para>
|
|
|
|
</refsect1>
|
|
|
|
</refentry>
|