110 lines
4.3 KiB
XML
110 lines
4.3 KiB
XML
<?xml version="1.0"?>
|
|
<!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
<!--
|
|
SPDX-License-Identifier: LGPL-2.1+
|
|
|
|
Copyright © 2016 Red Hat, Inc.
|
|
-->
|
|
<refentry id="environment.d" conditional='ENABLE_ENVIRONMENT_D'
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>environment.d</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>Ray</firstname>
|
|
<surname>Strode</surname>
|
|
<email>rstrode@redhat.com</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>environment.d</refentrytitle>
|
|
<manvolnum>5</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>environment.d</refname>
|
|
<refpurpose>Definition of user session environment</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename>~/.config/environment.d/*.conf</filename></para>
|
|
<para><filename>/etc/environment.d/*.conf</filename></para>
|
|
<para><filename>/run/environment.d/*.conf</filename></para>
|
|
<para><filename>/usr/lib/environment.d/*.conf</filename></para>
|
|
<para><filename>/etc/environment</filename></para>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>The <filename>environment.d</filename> directories contain a list of "global" environment
|
|
variable assignments for the user environment.
|
|
<citerefentry><refentrytitle>systemd-environment-d-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
parses them and updates the environment exported by the systemd user instance to the services it
|
|
starts.</para>
|
|
|
|
<para>It is recommended to use numerical prefixes for file names to simplify ordering.</para>
|
|
|
|
<para>For backwards compatibility, a symlink to <filename>/etc/environment</filename> is
|
|
installed, so this file is also parsed.</para>
|
|
</refsect1>
|
|
|
|
<xi:include href="standard-conf.xml" xpointer="confd" />
|
|
|
|
<refsect1>
|
|
<title>Configuration Format</title>
|
|
|
|
<para>The configuration files contain a list of
|
|
<literal><replaceable>KEY</replaceable>=<replaceable>VALUE</replaceable></literal> environment
|
|
variable assignments, separated by newlines. The right hand side of these assignments may
|
|
reference previously defined environment variables, using the <literal>${OTHER_KEY}</literal>
|
|
and <literal>$OTHER_KEY</literal> format. It is also possible to use
|
|
|
|
<literal>${<replaceable>FOO</replaceable>:-<replaceable>DEFAULT_VALUE</replaceable>}</literal>
|
|
to expand in the same way as <literal>${<replaceable>FOO</replaceable>}</literal> unless the
|
|
expansion would be empty, in which case it expands to <replaceable>DEFAULT_VALUE</replaceable>,
|
|
and use
|
|
<literal>${<replaceable>FOO</replaceable>:+<replaceable>ALTERNATE_VALUE</replaceable>}</literal>
|
|
to expand to <replaceable>ALTERNATE_VALUE</replaceable> as long as
|
|
<literal>${<replaceable>FOO</replaceable>}</literal> would have expanded to a non-empty value.
|
|
No other elements of shell syntax are supported.</para>
|
|
|
|
<para>Each <replaceable>KEY</replaceable> must be a valid variable name. Empty lines
|
|
and lines beginning with the comment character <literal>#</literal> are ignored.</para>
|
|
|
|
<refsect2>
|
|
<title>Example</title>
|
|
<example>
|
|
<title>Setup environment to allow access to a program installed in
|
|
<filename noindex='true'>/opt/foo</filename></title>
|
|
|
|
<para><filename>/etc/environment.d/60-foo.conf</filename>:
|
|
</para>
|
|
<programlisting>
|
|
FOO_DEBUG=force-software-gl,log-verbose
|
|
PATH=/opt/foo/bin:$PATH
|
|
LD_LIBRARY_PATH=/opt/foo/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
|
|
XDG_DATA_DIRS=/opt/foo/share:${XDG_DATA_DIRS:-/usr/local/share/:/usr/share/}
|
|
</programlisting>
|
|
</example>
|
|
</refsect2>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-environment-d-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.environment-generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|