| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-system-systemd" role="wrap">
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| 9 | <?dbhtml filename="systemd.html"?>
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| 10 |
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| 11 | <sect1info condition="script">
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| 12 | <productname>systemd</productname>
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| 13 | <productnumber>&systemd-version;</productnumber>
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| 14 | <address>&systemd-url;</address>
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| 15 | </sect1info>
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| 16 |
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| 17 | <title>Systemd-&systemd-version;</title>
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| 18 |
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| 19 | <indexterm zone="ch-system-systemd">
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| 20 | <primary sortas="a-Systemd">Systemd</primary>
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| 21 | </indexterm>
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| 22 |
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| 23 | <sect2 role="package">
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| 24 | <title/>
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| 25 |
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| 26 | <para>The Systemd package contains programs for controlling the startup,
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| 27 | running, and shutdown of the system.</para>
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| 28 |
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| 29 | <segmentedlist>
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| 30 | <segtitle>&buildtime;</segtitle>
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| 31 | <segtitle>&diskspace;</segtitle>
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| 32 |
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| 33 | <seglistitem>
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| 34 | <seg>&systemd-ch6-sbu;</seg>
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| 35 | <seg>&systemd-ch6-du;</seg>
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| 36 | </seglistitem>
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| 37 | </segmentedlist>
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| 38 | </sect2>
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| 39 |
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| 40 | <sect2 role="installation">
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| 41 | <title>Installation of Systemd</title>
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| 42 |
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| 43 | <para>Prepare Systemd for compilation:</para>
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| 44 |
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| 45 | <screen><userinput remap="configure">./configure --prefix=/usr \
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| 46 | --sysconfdir=/etc \
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| 47 | --localstatedir=/var \
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| 48 | --libexecdir=/usr/lib \
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| 49 | --docdir=/usr/share/doc/systemd-&systemd-version; \
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| 50 | --with-rootprefix= \
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| 51 | --with-rootlibdir=/lib \
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| 52 | --enable-split-usr \
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| 53 | --disable-gudev \
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| 54 | --without-python</userinput></screen>
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| 55 |
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| 56 | <variablelist>
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| 57 | <title>The meaning of the configure options:</title>
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| 58 |
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| 59 | <varlistentry>
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| 60 | <term><parameter>--with-root-*</parameter></term>
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| 61 | <listitem>
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| 62 | <para>These switches ensure that core programs and
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| 63 | shared libraries are installed in the subdirectories
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| 64 | of the root partition.</para>
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| 65 | </listitem>
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| 66 | </varlistentry>
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| 67 |
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| 68 | <varlistentry>
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| 69 | <term><parameter>--enable-split-usr</parameter></term>
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| 70 | <listitem>
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| 71 | <para>This switch ensures that Systemd will work on
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| 72 | systems where /bin, /lib and /sbin directories are not
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| 73 | symlinks to their /usr counterparts.</para>
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| 74 | </listitem>
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| 75 | </varlistentry>
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| 76 |
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| 77 | <varlistentry>
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| 78 | <term><parameter>--disable-gudev --without-python</parameter></term>
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| 79 | <listitem>
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| 80 | <para>These switches disable optional features because
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| 81 | LFS does not provide their dependencies.</para>
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| 82 | </listitem>
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| 83 | </varlistentry>
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| 84 |
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| 85 | </variablelist>
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| 86 |
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| 87 | <para>Compile the package:</para>
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| 88 |
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| 89 | <screen><userinput remap="make">make</userinput></screen>
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| 90 |
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| 91 | <para>The package comes with a testsuite, but it doesn't work in
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| 92 | chroot. It needs to be run from a system booted using Systemd.</para>
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| 93 |
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| 94 | <para>Install the package:</para>
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| 95 |
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| 96 | <screen><userinput remap="install">make install</userinput></screen>
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| 97 |
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| 98 | <para>Install manual pages which are shipped in the tarball, but were
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| 99 | not installed by install process:</para>
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| 100 |
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| 101 | <screen><userinput remap="install">for cat in 1 3 5 7 8
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| 102 | do
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| 103 | install -v -m644 man/*.${cat} /usr/share/man/man${cat}
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| 104 | done</userinput></screen>
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| 105 |
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| 106 | <para>Move NSS myhostname library to <filename
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| 107 | class="directory">/lib</filename>:</para>
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| 108 |
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| 109 | <screen><userinput remap="install">mv -v /usr/lib/libnss_myhostname.so.2 /lib</userinput></screen>
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| 110 |
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| 111 | <para>Create the Sysvinit compatibility symlinks, so Systemd is used
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| 112 | as the default init system:</para>
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| 113 |
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| 114 | <screen><userinput remap="install">for tool in runlevel reboot shutdown poweroff halt telinit; do
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| 115 | ln -sfv ../bin/systemctl /sbin/${tool}
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| 116 | done
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| 117 | ln -sfv ../lib/systemd/systemd /sbin/init</userinput></screen>
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| 118 |
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| 119 | <para>Remove a reference to a non-existent group:</para>
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| 120 |
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| 121 | <screen><userinput remap="install">sed -i "s@0775 root lock@0755 root root@g" /usr/lib/tmpfiles.d/legacy.conf</userinput></screen>
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| 122 |
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| 123 | <para>Create the <filename>/etc/machine-id</filename> file needed by
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| 124 | Journald:</para>
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| 125 |
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| 126 | <screen><userinput remap="install">systemd-machine-id-setup</userinput></screen>
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| 127 |
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| 128 | </sect2>
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| 129 |
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| 130 | <sect2 id="contents-systemd" role="content">
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| 131 | <title>Contents of Systemd</title>
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| 132 |
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| 133 | <segmentedlist>
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| 134 | <segtitle>Installed programs</segtitle>
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| 135 | <segtitle>Installed libraries</segtitle>
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| 136 | <segtitle>Installed directories</segtitle>
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| 137 |
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| 138 | <seglistitem>
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| 139 | <seg>bootctl, halt, hostnamectl, init, journalctl, kernel-install, localectl,
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| 140 | loginctl, machinectl, poweroff, reboot, runlevel, shutdown, systemctl,
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| 141 | systemd-analyze, systemd-ask-password, systemd-cat, systemd-cgls, systemd-cgtop,
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| 142 | systemd-coredumpctl, systemd-delta, systemd-detect-virt, systemd-inhibit,
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| 143 | systemd-machine-id-setup, systemd-notify, systemd-nspawn, systemd-run,
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| 144 | systemd-stdio-bridge, systemd-tmpfiles, systemd-tty-ask-password-agent, telinit,
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| 145 | timedatectl, and udevadm</seg>
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| 146 | <seg>libnss_myhostname.so.2, libsystemd-daemon.so, libsystemd-id128.so,
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| 147 | libsystemd-journal.so, libsystemd-login.so, and libudev.so</seg>
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| 148 | <seg>/etc/binfmt.d, /etc/init.d, /etc/kernel, /etc/modules-load.d,
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| 149 | /etc/sysctl.d, /etc/systemd, /etc/tmpfiles.d, /etc/udev,
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| 150 | /etc/xdg/systemd, /lib/systemd, /lib/udev, /usr/include/systemd,
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| 151 | /usr/lib/binfmt.d, /usr/lib/kernel, /usr/lib/modules-load.d, /usr/lib/rpm,
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| 152 | /usr/lib/sysctl.d, /usr/lib/systemd, /usr/lib/tmpfiles.d,
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| 153 | /usr/share/doc/systemd-&systemd-version;, /usr/share/systemd,
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| 154 | /var/lib/systemd and /var/log/journal</seg>
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| 155 | </seglistitem>
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| 156 | </segmentedlist>
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| 157 |
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| 158 | <variablelist>
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| 159 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 160 | <?dbfo list-presentation="list"?>
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| 161 | <?dbhtml list-presentation="table"?>
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| 162 |
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| 163 | <!-- <varlistentry id="bootctl">
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| 164 | <term><command>bootctl</command></term>
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| 165 | <listitem>
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| 166 | <para></para>
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| 167 | <indexterm zone="ch-system-systemd bootctl">
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| 168 | <primary sortas="b-bootctl">bootctl</primary>
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| 169 | </indexterm>
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| 170 | </listitem>
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| 171 | </varlistentry> -->
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| 172 |
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| 173 | <varlistentry id="halt">
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| 174 | <term><command>halt</command></term>
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| 175 | <listitem>
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| 176 | <para>Normally invokes <command>shutdown</command> with the
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| 177 | <parameter>-h</parameter> option, except when already in run-level 0,
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| 178 | then it tells the kernel to halt the system; it notes in the
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| 179 | file <filename>/var/log/wtmp</filename> that the system is being
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| 180 | brought down.</para>
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| 181 | <indexterm zone="ch-system-systemd halt">
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| 182 | <primary sortas="b-halt">halt</primary>
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| 183 | </indexterm>
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| 184 | </listitem>
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| 185 | </varlistentry>
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| 186 |
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| 187 | <varlistentry id="hostnamectl">
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| 188 | <term><command>hostnamectl</command></term>
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| 189 | <listitem>
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| 190 | <para>used to query and change the system hostname and related
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| 191 | settings.</para>
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| 192 | <indexterm zone="ch-system-systemd hostnamectl">
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| 193 | <primary sortas="b-hostnamectl">hostnamectl</primary>
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| 194 | </indexterm>
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| 195 | </listitem>
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| 196 | </varlistentry>
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| 197 |
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| 198 | <varlistentry id="init">
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| 199 | <term><command>init</command></term>
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| 200 | <listitem>
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| 201 | <para>The first process to be started when the kernel has initialized
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| 202 | the hardware which takes over the boot process and starts all the
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| 203 | proceses it is instructed to.</para>
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| 204 | <indexterm zone="ch-system-systemd init">
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| 205 | <primary sortas="b-init">init</primary>
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| 206 | </indexterm>
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| 207 | </listitem>
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| 208 | </varlistentry>
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| 209 |
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| 210 | <varlistentry id="journalctl">
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| 211 | <term><command>journalctl</command></term>
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| 212 | <listitem>
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| 213 | <para>used to query the contents of the Systemd Journal.</para>
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| 214 | <indexterm zone="ch-system-systemd journalctl">
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| 215 | <primary sortas="b-journalctl">journalctl</primary>
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| 216 | </indexterm>
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| 217 | </listitem>
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| 218 | </varlistentry>
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| 219 |
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| 220 | <varlistentry id="kernel-install">
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| 221 | <term><command>kernel-install</command></term>
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| 222 | <listitem>
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| 223 | <para>used to add and remove kernel and initramfs images to and
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| 224 | from /boot.</para>
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| 225 | <indexterm zone="ch-system-systemd kernel-install">
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| 226 | <primary sortas="b-kernel-install">kernel-install</primary>
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| 227 | </indexterm>
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| 228 | </listitem>
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| 229 | </varlistentry>
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| 230 |
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| 231 | <varlistentry id="localectl">
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| 232 | <term><command>localectl</command></term>
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| 233 | <listitem>
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| 234 | <para>used to query and change the system locale and keyboard layout
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| 235 | settings.</para>
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| 236 | <indexterm zone="ch-system-systemd localectl">
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| 237 | <primary sortas="b-localectl">localectl</primary>
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| 238 | </indexterm>
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| 239 | </listitem>
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| 240 | </varlistentry>
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| 241 |
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| 242 | <varlistentry id="loginctl">
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| 243 | <term><command>loginctl</command></term>
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| 244 | <listitem>
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| 245 | <para>used to introspect and control the state of the Systemd Login
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| 246 | Manager.</para>
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| 247 | <indexterm zone="ch-system-systemd loginctl">
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| 248 | <primary sortas="b-loginctl">loginctl</primary>
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| 249 | </indexterm>
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| 250 | </listitem>
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| 251 | </varlistentry>
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| 252 |
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| 253 | <varlistentry id="machinectl">
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| 254 | <term><command>machinectl</command></term>
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| 255 | <listitem>
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| 256 | <para>used to introspect and control the state of the Systemd Virtual
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| 257 | Machine and Container Registration Manager</para>
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| 258 | <indexterm zone="ch-system-systemd machinectl">
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| 259 | <primary sortas="b-machinectl">machinectl</primary>
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| 260 | </indexterm>
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| 261 | </listitem>
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| 262 | </varlistentry>
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| 263 |
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| 264 | <varlistentry id="poweroff">
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| 265 | <term><command>poweroff</command></term>
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| 266 | <listitem>
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| 267 | <para>Tells the kernel to halt the system and switch off the computer
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| 268 | (see <command>halt</command>).</para>
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| 269 | <indexterm zone="ch-system-systemd poweroff">
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| 270 | <primary sortas="b-poweroff">poweroff</primary>
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| 271 | </indexterm>
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| 272 | </listitem>
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| 273 | </varlistentry>
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| 274 |
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| 275 | <varlistentry id="reboot">
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| 276 | <term><command>reboot</command></term>
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| 277 | <listitem>
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| 278 | <para>Tells the kernel to reboot the system (see
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| 279 | <command>halt</command>).</para>
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| 280 | <indexterm zone="ch-system-systemd reboot">
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| 281 | <primary sortas="b-reboot">reboot</primary>
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| 282 | </indexterm>
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| 283 | </listitem>
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| 284 | </varlistentry>
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| 285 |
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| 286 | <varlistentry id="runlevel">
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| 287 | <term><command>runlevel</command></term>
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| 288 | <listitem>
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| 289 | <para>Reports the previous and the current run-level, as noted in the
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| 290 | last run-level record in <filename>/var/run/utmp</filename>.</para>
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| 291 | <indexterm zone="ch-system-systemd runlevel">
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| 292 | <primary sortas="b-runlevel">runlevel</primary>
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| 293 | </indexterm>
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| 294 | </listitem>
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| 295 | </varlistentry>
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| 296 |
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| 297 | <varlistentry id="shutdown">
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| 298 | <term><command>shutdown</command></term>
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| 299 | <listitem>
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| 300 | <para>Brings the system down in a secure way, signaling all processes
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| 301 | and notifying all logged-in users.</para>
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| 302 | <indexterm zone="ch-system-systemd shutdown">
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| 303 | <primary sortas="b-shutdown">shutdown</primary>
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| 304 | </indexterm>
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| 305 | </listitem>
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| 306 | </varlistentry>
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| 307 |
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| 308 | <varlistentry id="systemctl">
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| 309 | <term><command>systemctl</command></term>
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| 310 | <listitem>
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| 311 | <para>used to introspect and control the state of the Systemd system and
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| 312 | service manager.</para>
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| 313 | <indexterm zone="ch-system-systemd systemctl">
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| 314 | <primary sortas="b-systemctl">systemctl</primary>
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| 315 | </indexterm>
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| 316 | </listitem>
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| 317 | </varlistentry>
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| 318 |
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| 319 | <varlistentry id="systemd-analyze">
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| 320 | <term><command>systemd-analyze</command></term>
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| 321 | <listitem>
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| 322 | <para>used to determine system boot-up performance of the current boot.
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| 323 | </para>
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| 324 | <indexterm zone="ch-system-systemd systemd-analyze">
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| 325 | <primary sortas="b-systemd-analyze">systemd-analyze</primary>
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| 326 | </indexterm>
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| 327 | </listitem>
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| 328 | </varlistentry>
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| 329 |
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| 330 | <varlistentry id="systemd-ask-password">
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| 331 | <term><command>systemd-ask-password</command></term>
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| 332 | <listitem>
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| 333 | <para>used to query a system password or passphrase from the user, using a
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| 334 | question message specified on the command line.</para>
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| 335 | <indexterm zone="ch-system-systemd systemd-ask-password">
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| 336 | <primary sortas="b-systemd-ask-password">systemd-ask-password</primary>
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| 337 | </indexterm>
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| 338 | </listitem>
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| 339 | </varlistentry>
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| 340 |
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| 341 | <varlistentry id="systemd-cat">
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| 342 | <term><command>systemd-cat</command></term>
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| 343 | <listitem>
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| 344 | <para>used to connect STDOUT and STDERR of a process with the Journal.
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| 345 | </para>
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| 346 | <indexterm zone="ch-system-systemd systemd-cat">
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| 347 | <primary sortas="b-systemd-cat">systemd-cat</primary>
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| 348 | </indexterm>
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| 349 | </listitem>
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| 350 | </varlistentry>
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| 351 |
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| 352 | <varlistentry id="systemd-cgls">
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| 353 | <term><command>systemd-cgls</command></term>
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| 354 | <listitem>
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| 355 | <para>recursively shows the contents of the selected Linux control group
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| 356 | hierarchy in a tree.</para>
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| 357 | <indexterm zone="ch-system-systemd systemd-cgls">
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| 358 | <primary sortas="b-systemd-cgls">systemd-cgls</primary>
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| 359 | </indexterm>
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| 360 | </listitem>
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| 361 | </varlistentry>
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| 362 |
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| 363 | <varlistentry id="systemd-cgtop">
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| 364 | <term><command>systemd-cgtop</command></term>
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| 365 | <listitem>
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| 366 | <para>shows the top control groups of the local Linux control group hierarchy,
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| 367 | ordered by their CPU, memory and disk I/O load.</para>
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| 368 | <indexterm zone="ch-system-systemd systemd-cgtop">
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| 369 | <primary sortas="b-systemd-cgtop">systemd-cgtop</primary>
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| 370 | </indexterm>
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| 371 | </listitem>
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| 372 | </varlistentry>
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| 373 |
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| 374 | <varlistentry id="systemd-coredumpctl">
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| 375 | <term><command>systemd-coredumpctl</command></term>
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| 376 | <listitem>
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| 377 | <para>used to retrieve coredumps from the Systemd Journal</para>
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| 378 | <indexterm zone="ch-system-systemd systemd-coredumpctl">
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| 379 | <primary sortas="b-systemd-coredumpctl">systemd-coredumpctl</primary>
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| 380 | </indexterm>
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| 381 | </listitem>
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| 382 | </varlistentry>
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| 383 |
|
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| 384 | <varlistentry id="systemd-delta">
|
|---|
| 385 | <term><command>systemd-delta</command></term>
|
|---|
| 386 | <listitem>
|
|---|
| 387 | <para>used to identify and compare configuration files in
|
|---|
| 388 | <filename class="directory">/etc</filename> that override default
|
|---|
| 389 | counterparts in <filename class="directory">/usr</filename>.</para>
|
|---|
| 390 | <indexterm zone="ch-system-systemd systemd-delta">
|
|---|
| 391 | <primary sortas="b-systemd-delta">systemd-delta</primary>
|
|---|
| 392 | </indexterm>
|
|---|
| 393 | </listitem>
|
|---|
| 394 | </varlistentry>
|
|---|
| 395 |
|
|---|
| 396 | <varlistentry id="systemd-detect-virt">
|
|---|
| 397 | <term><command>systemd-detect-virt</command></term>
|
|---|
| 398 | <listitem>
|
|---|
| 399 | <para>detects execution in a virtualized environment.</para>
|
|---|
| 400 | <indexterm zone="ch-system-systemd systemd-detect-virt">
|
|---|
| 401 | <primary sortas="b-systemd-detect-virt">systemd-detect-virt</primary>
|
|---|
| 402 | </indexterm>
|
|---|
| 403 | </listitem>
|
|---|
| 404 | </varlistentry>
|
|---|
| 405 |
|
|---|
| 406 | <varlistentry id="systemd-inhibit">
|
|---|
| 407 | <term><command>systemd-inhibit</command></term>
|
|---|
| 408 | <listitem>
|
|---|
| 409 | <para>used to execute a program with a shutdown, sleep or idle inhibitor lock
|
|---|
| 410 | taken.</para>
|
|---|
| 411 | <indexterm zone="ch-system-systemd systemd-inhibit">
|
|---|
| 412 | <primary sortas="b-systemd-inhibit">systemd-inhibit</primary>
|
|---|
| 413 | </indexterm>
|
|---|
| 414 | </listitem>
|
|---|
| 415 | </varlistentry>
|
|---|
| 416 |
|
|---|
| 417 | <varlistentry id="systemd-machine-id-setup">
|
|---|
| 418 | <term><command>systemd-machine-id-setup</command></term>
|
|---|
| 419 | <listitem>
|
|---|
| 420 | <para>used by system installer tools to initialize the machine ID stored in
|
|---|
| 421 | <filename>/etc/machine-id</filename> at install time with a randomly
|
|---|
| 422 | generated ID.</para>
|
|---|
| 423 | <indexterm zone="ch-system-systemd systemd-machine-id-setup">
|
|---|
| 424 | <primary sortas="b-systemd-machine-id-setup">systemd-machine-id-setup</primary>
|
|---|
| 425 | </indexterm>
|
|---|
| 426 | </listitem>
|
|---|
| 427 | </varlistentry>
|
|---|
| 428 |
|
|---|
| 429 | <varlistentry id="systemd-notify">
|
|---|
| 430 | <term><command>systemd-notify</command></term>
|
|---|
| 431 | <listitem>
|
|---|
| 432 | <para>used by daemon scripts to notify the init system about status changes.
|
|---|
| 433 | </para>
|
|---|
| 434 | <indexterm zone="ch-system-systemd systemd-notify">
|
|---|
| 435 | <primary sortas="b-systemd-notify">systemd-notify</primary>
|
|---|
| 436 | </indexterm>
|
|---|
| 437 | </listitem>
|
|---|
| 438 | </varlistentry>
|
|---|
| 439 |
|
|---|
| 440 | <varlistentry id="systemd-nspawn">
|
|---|
| 441 | <term><command>systemd-nspawn</command></term>
|
|---|
| 442 | <listitem>
|
|---|
| 443 | <para>used to run a command or OS in a light-weight namespace container.</para>
|
|---|
| 444 | <indexterm zone="ch-system-systemd systemd-nspawn">
|
|---|
| 445 | <primary sortas="b-systemd-nspawn">systemd-nspawn</primary>
|
|---|
| 446 | </indexterm>
|
|---|
| 447 | </listitem>
|
|---|
| 448 | </varlistentry>
|
|---|
| 449 |
|
|---|
| 450 | <varlistentry id="systemd-run">
|
|---|
| 451 | <term><command>systemd-run</command></term>
|
|---|
| 452 | <listitem>
|
|---|
| 453 | <para>used to create and start a transient .service or a .scope unit and
|
|---|
| 454 | run the specified command in it.</para>
|
|---|
| 455 | <indexterm zone="ch-system-systemd systemd-run">
|
|---|
| 456 | <primary sortas="b-systemd-run">systemd-run</primary>
|
|---|
| 457 | </indexterm>
|
|---|
| 458 | </listitem>
|
|---|
| 459 | </varlistentry>
|
|---|
| 460 |
|
|---|
| 461 | <!-- <varlistentry id="systemd-stdio-bridge">
|
|---|
| 462 | <term><command>systemd-stdio-bridge</command></term>
|
|---|
| 463 | <listitem>
|
|---|
| 464 | <para>To be completed</para>
|
|---|
| 465 | <indexterm zone="ch-system-systemd systemd-stdio-bridge">
|
|---|
| 466 | <primary sortas="b-systemd-stdio-bridge">systemd-stdio-bridge</primary>
|
|---|
| 467 | </indexterm>
|
|---|
| 468 | </listitem>
|
|---|
| 469 | </varlistentry> -->
|
|---|
| 470 |
|
|---|
| 471 | <varlistentry id="systemd-tmpfiles">
|
|---|
| 472 | <term><command>systemd-tmpfiles</command></term>
|
|---|
| 473 | <listitem>
|
|---|
| 474 | <para>creates, deletes and cleans up volatile and temporary files and directories,
|
|---|
| 475 | based on the configuration file format and location specified in
|
|---|
| 476 | <filename class="directory">tmpfiles.d</filename> directories.</para>
|
|---|
| 477 | <indexterm zone="ch-system-systemd systemd-tmpfiles">
|
|---|
| 478 | <primary sortas="b-systemd-tmpfiles">systemd-tmpfiles</primary>
|
|---|
| 479 | </indexterm>
|
|---|
| 480 | </listitem>
|
|---|
| 481 | </varlistentry>
|
|---|
| 482 |
|
|---|
| 483 | <varlistentry id="systemd-tty-ask-password-agent">
|
|---|
| 484 | <term><command>systemd-tty-ask-password-agent</command></term>
|
|---|
| 485 | <listitem>
|
|---|
| 486 | <para>used to list or process pending Systemd password requests</para>
|
|---|
| 487 | <indexterm zone="ch-system-systemd systemd-tty-ask-password-agent">
|
|---|
| 488 | <primary sortas="b-systemd-tty-ask-password-agent">systemd-tty-ask-password-agent</primary>
|
|---|
| 489 | </indexterm>
|
|---|
| 490 | </listitem>
|
|---|
| 491 | </varlistentry>
|
|---|
| 492 |
|
|---|
| 493 | <varlistentry id="telinit">
|
|---|
| 494 | <term><command>telinit</command></term>
|
|---|
| 495 | <listitem>
|
|---|
| 496 | <para>Tells <command>init</command> which run-level to change to.</para>
|
|---|
| 497 | <indexterm zone="ch-system-systemd telinit">
|
|---|
| 498 | <primary sortas="b-telinit">telinit</primary>
|
|---|
| 499 | </indexterm>
|
|---|
| 500 | </listitem>
|
|---|
| 501 | </varlistentry>
|
|---|
| 502 |
|
|---|
| 503 | <varlistentry id="timedatectl">
|
|---|
| 504 | <term><command>timedatectl</command></term>
|
|---|
| 505 | <listitem>
|
|---|
| 506 | <para>used to query and change the system clock and its settings.
|
|---|
| 507 | </para>
|
|---|
| 508 | <indexterm zone="ch-system-systemd timedatectl">
|
|---|
| 509 | <primary sortas="b-timedatectl">timedatectl</primary>
|
|---|
| 510 | </indexterm>
|
|---|
| 511 | </listitem>
|
|---|
| 512 | </varlistentry>
|
|---|
| 513 |
|
|---|
| 514 | <varlistentry id="udevadm">
|
|---|
| 515 | <term><command>udevadm</command></term>
|
|---|
| 516 | <listitem>
|
|---|
| 517 | <para>Generic Udev administration tool: controls the udevd daemon,
|
|---|
| 518 | provides info from the Udev database, monitors uevents, waits for
|
|---|
| 519 | uevents to finish, tests Udev configuration, and triggers uevents
|
|---|
| 520 | for a given device.</para>
|
|---|
| 521 | <indexterm zone="ch-system-systemd udevadm">
|
|---|
| 522 | <primary sortas="b-udevadm">udevadm</primary>
|
|---|
| 523 | </indexterm>
|
|---|
| 524 | </listitem>
|
|---|
| 525 | </varlistentry>
|
|---|
| 526 |
|
|---|
| 527 | <varlistentry id="libsystemd-daemon">
|
|---|
| 528 | <term><filename class="libraryfile">libsystemd-daemon</filename></term>
|
|---|
| 529 | <listitem>
|
|---|
| 530 | <para>Systemd Daemon utility library.</para>
|
|---|
| 531 | <indexterm zone="ch-system-systemd libsystemd-daemon">
|
|---|
| 532 | <primary sortas="c-libsystemd-daemon">libsystemd-daemon</primary>
|
|---|
| 533 | </indexterm>
|
|---|
| 534 | </listitem>
|
|---|
| 535 | </varlistentry>
|
|---|
| 536 |
|
|---|
| 537 | <varlistentry id="libsystemd-id128">
|
|---|
| 538 | <term><filename class="libraryfile">libsystemd-id128</filename></term>
|
|---|
| 539 | <listitem>
|
|---|
| 540 | <para>Systemd 128 Bit ID utility library.</para>
|
|---|
| 541 | <indexterm zone="ch-system-systemd libsystemd-id128">
|
|---|
| 542 | <primary sortas="c-libsystemd-id128">libsystemd-id128</primary>
|
|---|
| 543 | </indexterm>
|
|---|
| 544 | </listitem>
|
|---|
| 545 | </varlistentry>
|
|---|
| 546 |
|
|---|
| 547 | <varlistentry id="libsystemd-journal">
|
|---|
| 548 | <term><filename class="libraryfile">libsystemd-journal</filename></term>
|
|---|
| 549 | <listitem>
|
|---|
| 550 | <para>Systemd Journal utility library.</para>
|
|---|
| 551 | <indexterm zone="ch-system-systemd libsystemd-journal">
|
|---|
| 552 | <primary sortas="c-libsystemd-journal">libsystemd-journal</primary>
|
|---|
| 553 | </indexterm>
|
|---|
| 554 | </listitem>
|
|---|
| 555 | </varlistentry>
|
|---|
| 556 |
|
|---|
| 557 | <varlistentry id="libsystemd-login">
|
|---|
| 558 | <term><filename class="libraryfile">libsystemd-login</filename></term>
|
|---|
| 559 | <listitem>
|
|---|
| 560 | <para>Systemd Login utility library.</para>
|
|---|
| 561 | <indexterm zone="ch-system-systemd libsystemd-login">
|
|---|
| 562 | <primary sortas="c-libsystemd-login">libsystemd-login</primary>
|
|---|
| 563 | </indexterm>
|
|---|
| 564 | </listitem>
|
|---|
| 565 | </varlistentry>
|
|---|
| 566 |
|
|---|
| 567 | <varlistentry id="libudev">
|
|---|
| 568 | <term><filename class="libraryfile">libudev</filename></term>
|
|---|
| 569 | <listitem>
|
|---|
| 570 | <para>A library to access Udev device information.</para>
|
|---|
| 571 | <indexterm zone="ch-system-systemd libudev">
|
|---|
| 572 | <primary sortas="c-libudev">libudev</primary>
|
|---|
| 573 | </indexterm>
|
|---|
| 574 | </listitem>
|
|---|
| 575 | </varlistentry>
|
|---|
| 576 |
|
|---|
| 577 | </variablelist>
|
|---|
| 578 |
|
|---|
| 579 | </sect2>
|
|---|
| 580 |
|
|---|
| 581 | </sect1>
|
|---|
