1 <?xml version='1.0'?> <!--*-nxml-*-->
2 <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU Lesser General Public License as published by
13 the Free Software Foundation; either version 2.1 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 Lesser General Public License for more details.
21 You should have received a copy of the GNU Lesser General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 <refentry id="machine-info">
27 <title>machine-info</title>
28 <productname>systemd</productname>
32 <contrib>Developer</contrib>
33 <firstname>Lennart</firstname>
34 <surname>Poettering</surname>
35 <email>lennart@poettering.net</email>
41 <refentrytitle>machine-info</refentrytitle>
42 <manvolnum>5</manvolnum>
46 <refname>machine-info</refname>
47 <refpurpose>Local machine information file</refpurpose>
51 <para><filename>/etc/machine-info</filename></para>
55 <title>Description</title>
57 <para>The <filename>/etc/machine-info</filename> file
58 contains machine meta data.</para>
60 <para>The basic file format of
61 <filename>machine-info</filename> is a
62 newline-separated list of environment-like
63 shell-compatible variable assignments. It is possible
64 to source the configuration from shell scripts,
65 however, beyond mere variable assignments no shell
66 features are supported, allowing applications to read
67 the file without implementing a shell compatible
68 execution engine.</para>
70 <para><filename>/etc/machine-info</filename> contains
71 meta data about the machine that is set by the user or
74 <para>Depending on the operating system other
75 configuration files might be checked for machine
76 information as well, however only as fallback.</para>
79 <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
80 to change the settings of this file from the command
85 <title>Options</title>
87 <para>The following machine meta data parameters may
89 <filename>/etc/machine-info</filename>:</para>
94 <term><varname>PRETTY_HOSTNAME=</varname></term>
96 <listitem><para>A pretty
97 human-readable UTF8 machine identifier
98 string. This should contain a name
99 like <literal>Lennart's
100 Laptop</literal> which is useful to
101 present to the user and does not
102 suffer by the syntax limitations of
103 internet domain names. If possible the
104 internet host name as configured in
105 <filename>/etc/hostname</filename>
106 should be kept similar to this
107 one. Example: if this value is
108 <literal>Lennart's Computer</literal>
109 an Internet host name of
110 <literal>lennarts-computer</literal>
111 might be a good choice. If this
112 parameter is not set an application
113 should fall back to the Internet host
114 name for presentation
115 purposes.</para></listitem>
119 <term><varname>ICON_NAME=</varname></term>
121 <listitem><para>An icon identifying
122 this machine according to the <ulink
123 url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">XDG
124 Icon Naming Specification</ulink>. If
125 this parameter is not set an
126 application should fall back to
127 <literal>computer</literal> or a
128 similar icon name.</para></listitem>
136 <title>Example</title>
138 <programlisting>PRETTY_HOSTNAME="Lennart's Computer"
139 ICON_NAME=computer-laptop</programlisting>
143 <title>See Also</title>
145 <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
146 <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
147 <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
148 <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
149 <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
150 <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>