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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="locale.conf">
<refentryinfo>
<title>locale.conf</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>locale.conf</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>locale.conf</refname>
<refpurpose>Configuration file for locale settings</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/etc/locale.conf</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>The <filename>/etc/locale.conf</filename> file configures
system-wide locale settings. It is read at early boot by
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
<para>The format of <filename>locale.conf</filename> is a newline-separated list of environment-like
shell-compatible variable assignments, ignoring comments and empty lines. It is possible to source the
configuration from shell scripts, however, beyond mere variable assignments, no shell features are
supported, allowing applications to read the file without implementing a shell compatible execution
engine. See
<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for a
detailed description of the format.</para>
<para>Note that the kernel command line options
<varname>locale.LANG=</varname>,
<varname>locale.LANGUAGE=</varname>,
<varname>locale.LC_CTYPE=</varname>,
<varname>locale.LC_NUMERIC=</varname>,
<varname>locale.LC_TIME=</varname>,
<varname>locale.LC_COLLATE=</varname>,
<varname>locale.LC_MONETARY=</varname>,
<varname>locale.LC_MESSAGES=</varname>,
<varname>locale.LC_PAPER=</varname>,
<varname>locale.LC_NAME=</varname>,
<varname>locale.LC_ADDRESS=</varname>,
<varname>locale.LC_TELEPHONE=</varname>,
<varname>locale.LC_MEASUREMENT=</varname>,
<varname>locale.LC_IDENTIFICATION=</varname> may be
used to override the locale settings at boot.</para>
<para>The locale settings configured in
<filename>/etc/locale.conf</filename> are system-wide and are
inherited by every service or user, unless overridden or unset by
individual programs or users.</para>
<para>Depending on the operating system, other configuration files
might be checked for locale configuration as well, however only as
fallback.</para>
<para><filename>/etc/locale.conf</filename> can be updated
using
<citerefentry><refentrytitle>systemd-localed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
<citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
may be used to alter the settings in this file during runtime from
the command line. Use
<citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
to customize them on mounted (but not booted) system images.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following locale settings may be set using
<filename>/etc/locale.conf</filename>:
<varname>LANG=</varname>,
<varname>LANGUAGE=</varname>,
<varname>LC_CTYPE=</varname>,
<varname>LC_NUMERIC=</varname>,
<varname>LC_TIME=</varname>,
<varname>LC_COLLATE=</varname>,
<varname>LC_MONETARY=</varname>,
<varname>LC_MESSAGES=</varname>,
<varname>LC_PAPER=</varname>,
<varname>LC_NAME=</varname>,
<varname>LC_ADDRESS=</varname>,
<varname>LC_TELEPHONE=</varname>,
<varname>LC_MEASUREMENT=</varname>,
<varname>LC_IDENTIFICATION=</varname>.
Note that <varname>LC_ALL</varname> may not be configured in this
file. For details about the meaning and semantics of these
settings, refer to
<citerefentry project='man-pages'><refentrytitle>locale</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
<title>Example</title>
<example>
<title>German locale with English messages</title>
<para><filename>/etc/locale.conf</filename>:</para>
<programlisting># Custom settings
LANG=de_DE.UTF-8
LC_MESSAGES=en_US.UTF-8</programlisting>
</example>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>locale</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-localed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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