man/standard-specifiers.xml

   1 <?xml version="1.0"?>
   2 <!DOCTYPE tbody PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
   4 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
   5
   6 <tbody>
   7   <!-- note: units also use the following deprecated specifiers that are not documented:
   8        %c, %r, %R. Do not reuse. -->
   9
  10   <row id='a'>
  11     <entry><literal>%a</literal></entry>
  12     <entry>Architecture</entry>
  13     <entry>A short string identifying the architecture of the local system. A string such as <constant>x86</constant>, <constant>x86-64</constant> or <constant>arm64</constant>. See the architectures defined for <varname>ConditionArchitecture=</varname> in <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> for a full list.</entry>
  14   </row>
  15   <row id='A'>
  16     <entry><literal>%A</literal></entry>
  17     <entry>Operating system image version</entry>
  18     <entry>The operating system image version identifier of the running system, as read from the <varname>IMAGE_VERSION=</varname> field of <filename>/etc/os-release</filename>. If not set, resolves to an empty string. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  19   </row>
  20   <row id='b'>
  21     <entry><literal>%b</literal></entry>
  22     <entry>Boot ID</entry>
  23     <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry>
  24   </row>
  25   <row id='B'>
  26     <entry><literal>%B</literal></entry>
  27     <entry>Operating system build ID</entry>
  28     <entry>The operating system build identifier of the running system, as read from the <varname>BUILD_ID=</varname> field of <filename>/etc/os-release</filename>. If not set, resolves to an empty string. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  29   </row>
  30   <row id='H'>
  31     <entry><literal>%H</literal></entry>
  32     <entry>Host name</entry>
  33     <entry>The hostname of the running system.</entry>
  34   </row>
  35   <row id='l'>
  36     <entry><literal>%l</literal></entry>
  37     <entry>Short host name</entry>
  38     <entry>The hostname of the running system, truncated at the first dot to remove any domain component.</entry>
  39   </row>
  40   <row id='m'>
  41     <entry><literal>%m</literal></entry>
  42     <entry>Machine ID</entry>
  43     <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  44   </row>
  45   <row id='M'>
  46     <entry><literal>%M</literal></entry>
  47     <entry>Operating system image identifier</entry>
  48     <entry>The operating system image identifier of the running system, as read from the <varname>IMAGE_ID=</varname> field of <filename>/etc/os-release</filename>. If not set, resolves to an empty string. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  49   </row>
  50   <row id='o'>
  51     <entry><literal>%o</literal></entry>
  52     <entry>Operating system ID</entry>
  53     <entry>The operating system identifier of the running system, as read from the <varname>ID=</varname> field of <filename>/etc/os-release</filename>. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  54   </row>
  55   <row id='q'>
  56     <entry><literal>%q</literal></entry>
  57     <entry>Pretty host name</entry>
  58     <entry>The pretty hostname of the running system, as read from the <varname>PRETTY_HOSTNAME=</varname> field of <filename>/etc/machine-info</filename>. If not set, resolves to the short hostname. See <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  59   </row>
  60   <row id='T'>
  61     <entry><literal>%T</literal></entry>
  62     <entry>Directory for temporary files</entry>
  63     <entry>This is either <filename>/tmp<!-- no / --></filename> or the path <literal>$TMPDIR</literal>, <literal>$TEMP</literal> or <literal>$TMP</literal> are set to. (Note that the directory may be specified without a trailing slash.)</entry>
  64   </row>
  65   <row id='v'>
  66     <entry><literal>%v</literal></entry>
  67     <entry>Kernel release</entry>
  68     <entry>Identical to <command>uname -r</command> output.</entry>
  69   </row>
  70   <row id='V'>
  71     <entry><literal>%V</literal></entry>
  72     <entry>Directory for larger and persistent temporary files</entry>
  73     <entry>This is either <filename>/var/tmp<!-- no / --></filename> or the path <literal>$TMPDIR</literal>, <literal>$TEMP</literal> or <literal>$TMP</literal> are set to. (Note that the directory may be specified without a trailing slash.)</entry>
  74   </row>
  75   <row id='w'>
  76     <entry><literal>%w</literal></entry>
  77     <entry>Operating system version ID</entry>
  78     <entry>The operating system version identifier of the running system, as read from the <varname>VERSION_ID=</varname> field of <filename>/etc/os-release</filename>. If not set, resolves to an empty string. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  79   </row>
  80   <row id='W'>
  81     <entry><literal>%W</literal></entry>
  82     <entry>Operating system variant ID</entry>
  83     <entry>The operating system variant identifier of the running system, as read from the <varname>VARIANT_ID=</varname> field of <filename>/etc/os-release</filename>. If not set, resolves to an empty string. See <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
  84   </row>
  85   <row id='percent'>
  86     <entry><literal>%%</literal></entry>
  87     <entry>Single percent sign</entry>
  88     <entry>Use <literal>%%</literal> in place of <literal>%</literal> to specify a single percent sign.</entry>
  89   </row>
  90 </tbody>