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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:25:50 +0000
commit19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch)
treed59b9989ce55ed23693e80974d94c856f1c2c8b1 /man/systemd-id128.xml
parentInitial commit. (diff)
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Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<?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+ -->
+
+<refentry id="systemd-id128" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>systemd-id128</title>
+ <productname>systemd</productname>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>systemd-id128</refentrytitle>
+ <manvolnum>1</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-id128</refname>
+ <refpurpose>Generate and print sd-128 identifiers</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <cmdsynopsis>
+ <command>systemd-id128</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="plain">new</arg>
+ </cmdsynopsis>
+
+ <cmdsynopsis>
+ <command>systemd-id128</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="plain">machine-id</arg>
+ </cmdsynopsis>
+
+ <cmdsynopsis>
+ <command>systemd-id128</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="plain">boot-id</arg>
+ </cmdsynopsis>
+
+ <cmdsynopsis>
+ <command>systemd-id128</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="plain">invocation-id</arg>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><command>id128</command> may be used to conveniently print
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ UUIDs. What identifier is printed depends on the specific verb.</para>
+
+ <para>With <command>new</command>, a new random identifier will be generated.</para>
+
+ <para>With <command>machine-id</command>, the identifier of the current machine will be
+ printed. See
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
+
+ <para>With <command>boot-id</command>, the identifier of the current boot will be
+ printed.</para>
+
+ <para>Both <command>machine-id</command> and <command>boot-id</command> may be combined
+ with the <option>--app-specific=<replaceable>app-id</replaceable></option> switch to
+ generate application-specific IDs. See
+ <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for the discussion when this is useful.</para>
+
+ <para>With <command>invocation-id</command>, the identifier of the current service invocation
+ will be printed. This is available in systemd services. See
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para>The following options are understood:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><option>-p</option></term>
+ <term><option>--pretty</option></term>
+
+ <listitem><para>Generate output as programming language snippets.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>-a <replaceable>app-id</replaceable></option></term>
+ <term><option>--app-specific=<replaceable>app-id</replaceable></option></term>
+
+ <listitem><para>With this option, an identifier that is the result of hashing the
+ application identifier <replaceable>app-id</replaceable> and the machine identifier will be
+ printed. The <replaceable>app-id</replaceable> argument must be a valid sd-id128 string
+ identifying the application.</para>
+ </listitem>
+ </varlistentry>
+
+ <xi:include href="standard-options.xml" xpointer="help" />
+ <xi:include href="standard-options.xml" xpointer="version" />
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Exit status</title>
+
+ <para>On success, 0 is returned, a non-zero failure code otherwise.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>