f93cf255d4
Closes #238 Update all files to list SPDX license shortname. Most files are BSD 3 clause license. The exceptions are: serge@sl ~/src/shadow$ git grep SPDX-License | grep -v BSD-3-Clause contrib/atudel:# SPDX-License-Identifier: BSD-4-Clause lib/tcbfuncs.c: * SPDX-License-Identifier: 0BSD libmisc/salt.c: * SPDX-License-Identifier: Unlicense src/login_nopam.c: * SPDX-License-Identifier: Unlicense src/nologin.c: * SPDX-License-Identifier: BSD-2-Clause src/vipw.c: * SPDX-License-Identifier: GPL-2.0-or-later Signed-off-by: Serge Hallyn <serge@hallyn.com>
143 lines
4.4 KiB
XML
143 lines
4.4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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SPDX-FileCopyrightText: 1991 , Julianne Frances Haugh
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SPDX-FileCopyrightText: 2007 - 2008, Nicolas François
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SPDX-License-Identifier: BSD-3-Clause
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-->
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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 SYSLOG_SG_ENAB SYSTEM "login.defs.d/SYSLOG_SG_ENAB.xml">
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<!-- SHADOW-CONFIG-HERE -->
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]>
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<refentry id='sg.1'>
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<!-- $Id$ -->
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<refentryinfo>
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<author>
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<firstname>Julianne Frances</firstname>
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<surname>Haugh</surname>
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<contrib>Creation, 1991</contrib>
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</author>
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<author>
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<firstname>Thomas</firstname>
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<surname>Kłoczko</surname>
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<email>kloczek@pld.org.pl</email>
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<contrib>shadow-utils maintainer, 2000 - 2007</contrib>
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</author>
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<author>
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<firstname>Nicolas</firstname>
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<surname>François</surname>
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<email>nicolas.francois@centraliens.net</email>
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<contrib>shadow-utils maintainer, 2007 - now</contrib>
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</author>
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</refentryinfo>
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<refmeta>
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<refentrytitle>sg</refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo class="sectdesc">User Commands</refmiscinfo>
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<refmiscinfo class="source">shadow-utils</refmiscinfo>
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<refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>
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</refmeta>
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<refnamediv id='name'>
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<refname>sg</refname>
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<refpurpose>execute command as different group ID</refpurpose>
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</refnamediv>
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<!-- body begins here -->
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<refsynopsisdiv id='synopsis'>
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<cmdsynopsis>
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<command>sg</command>
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<arg choice='opt'>- </arg>
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<arg choice='opt'>group
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<arg choice='opt'>-c </arg>
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command
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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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The <command>sg</command> command works similar to
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<command>newgrp</command> but accepts a command. The command will be
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executed with the <filename>/bin/sh</filename> shell. With most shells
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you may run <command>sg</command> from, you need to enclose multi-word
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commands in quotes. Another difference between
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<command>newgrp</command> and <command>sg</command> is that some
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shells treat <command>newgrp</command> specially, replacing themselves
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with a new instance of a shell that <command>newgrp</command> creates.
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This doesn't happen with <command>sg</command>, so upon exit from a
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<command>sg</command> command you are returned to your previous group
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ID.
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</para>
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</refsect1>
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<refsect1 id='configuration'>
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<title>CONFIGURATION</title>
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<para>
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The following configuration variables in
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<filename>/etc/login.defs</filename> change the behavior of this
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tool:
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</para>
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<variablelist>
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&SYSLOG_SG_ENAB;
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</variablelist>
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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>
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<para>User account information.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><filename>/etc/shadow</filename></term>
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<listitem>
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<para>Secure user account information.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><filename>/etc/group</filename></term>
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<listitem>
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<para>Group account information.</para>
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</listitem>
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</varlistentry>
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<varlistentry condition="gshadow">
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<term><filename>/etc/gshadow</filename></term>
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<listitem>
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<para>Secure group account information.</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='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>id</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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<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>newgrp</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>gpasswd</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>group</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry><phrase condition="gshadow">,
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<citerefentry>
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<refentrytitle>gshadow</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>
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</phrase>.
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</para>
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</refsect1>
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</refentry>
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