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timedatectl: introduce new command line client for timedated
Much like logind has a client in loginctl, and journald in journalctl introduce timedatectl, to change the system time (incl. RTC), timezones and related settings.
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,3 +1,4 @@ | ||
| /timedatectl | ||
| /test-date | ||
| /install-tree | ||
| /systemd-journal-gatewayd | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,243 @@ | ||
| <?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"> | ||
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||
| <!-- | ||
| This file is part of systemd. | ||
| Copyright 2012 Lennart Poettering | ||
| systemd is free software; you can redistribute it and/or modify it | ||
| under the terms of the GNU Lesser General Public License as published by | ||
| the Free Software Foundation; either version 2.1 of the License, or | ||
| (at your option) any later version. | ||
| systemd is distributed in the hope that it will be useful, but | ||
| WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| Lesser General Public License for more details. | ||
| You should have received a copy of the GNU Lesser General Public License | ||
| along with systemd; If not, see <http://www.gnu.org/licenses/>. | ||
| --> | ||
|
|
||
| <refentry id="timedatectl"> | ||
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| <refentryinfo> | ||
| <title>timedatectl</title> | ||
| <productname>systemd</productname> | ||
|
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| <authorgroup> | ||
| <author> | ||
| <contrib>Developer</contrib> | ||
| <firstname>Lennart</firstname> | ||
| <surname>Poettering</surname> | ||
| <email>[email protected]</email> | ||
| </author> | ||
| </authorgroup> | ||
| </refentryinfo> | ||
|
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||
| <refmeta> | ||
| <refentrytitle>timedatectl</refentrytitle> | ||
| <manvolnum>1</manvolnum> | ||
| </refmeta> | ||
|
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| <refnamediv> | ||
| <refname>timedatectl</refname> | ||
| <refpurpose>Control the system time and date</refpurpose> | ||
| </refnamediv> | ||
|
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| <refsynopsisdiv> | ||
| <cmdsynopsis> | ||
| <command>timedatectl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMAND</arg></command> | ||
| </cmdsynopsis> | ||
| </refsynopsisdiv> | ||
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| <refsect1> | ||
| <title>Description</title> | ||
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| <para><command>timedatectl</command> may be used to | ||
| query and change the system clock and its | ||
| settings.</para> | ||
| </refsect1> | ||
|
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| <refsect1> | ||
| <title>Options</title> | ||
|
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||
| <para>The following options are understood:</para> | ||
|
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||
| <variablelist> | ||
| <varlistentry> | ||
| <term><option>--help</option></term> | ||
| <term><option>-h</option></term> | ||
|
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| <listitem><para>Prints a short help | ||
| text and exits.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><option>--version</option></term> | ||
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| <listitem><para>Prints a short version | ||
| string and exits.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><option>--no-pager</option></term> | ||
|
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| <listitem><para>Do not pipe output into a | ||
| pager.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><option>--no-ask-password</option></term> | ||
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| <listitem><para>Don't query the user | ||
| for authentication for privileged | ||
| operations.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><option>-H</option></term> | ||
| <term><option>--host</option></term> | ||
|
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| <listitem><para>Execute operation | ||
| remotely. Specify a hostname, or | ||
| username and hostname separated by @, | ||
| to connect to. This will use SSH to | ||
| talk to a remote | ||
| system.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><option>--fix-system</option></term> | ||
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| <listitem><para>If | ||
| <command>set-local-rtc</command> is | ||
| invoked and this option is passed the | ||
| system clock is synchronized from the | ||
| RTC again, taking the new setting into | ||
| account. Otherwise the RTC is | ||
| synchonized from the system | ||
| clock.</para></listitem> | ||
| </varlistentry> | ||
| </variablelist> | ||
|
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| <para>The following commands are understood:</para> | ||
|
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| <variablelist> | ||
| <varlistentry> | ||
| <term><command>status</command></term> | ||
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| <listitem><para>Show current settings | ||
| of the system clock and | ||
| RTC.</para></listitem> | ||
| </varlistentry> | ||
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| <varlistentry> | ||
| <term><command>set-time [TIME]</command></term> | ||
|
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| <listitem><para>Set the system clock | ||
| to the specified time. This will also | ||
| update the RTC time accordingly. The time | ||
| may be specified in the format | ||
| "2012-10-30 | ||
| 18:17:16".</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><command>set-timezone [TIMEZONE]</command></term> | ||
|
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| <listitem><para>Set the system time | ||
| zone to the specified value. Available | ||
| time zones my be listed with | ||
| <command>list-timezones</command>. If | ||
| the RTC is configured to be in the | ||
| local time this will also update the | ||
| RTC time.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><command>list-timezones</command></term> | ||
|
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||
| <listitem><para>List available time | ||
| zones, one per line. Entries from the | ||
| list may selected as the system | ||
| timezone with | ||
| <command>set-timezone</command>.</para></listitem> | ||
| </varlistentry> | ||
|
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| <varlistentry> | ||
| <term><command>set-local-rtc [BOOL]</command></term> | ||
|
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| <listitem><para>Takes a boolean | ||
| argument. If <literal>0</literal> the | ||
| system is configured to maintain the | ||
| RTC in universal time, if | ||
| <literal>1</literal> it will maintain | ||
| the RTC in local time instead. Note | ||
| that maintaining the RTC in the local | ||
| timezone is is not fully supported and | ||
| will create various problems with time | ||
| zone changes and daylight saving | ||
| adjustments. If at all possible use | ||
| RTC in UTC. Note that invoking this | ||
| will also synchronize the RTC from the | ||
| system clock, unless | ||
| <option>--fix-system</option> is | ||
| passed (see above). This command will | ||
| change the 3rd line of | ||
| <filename>/etc/adjtime</filename>, as | ||
| documented in | ||
| <citerefentry><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para></listitem> | ||
| </varlistentry> | ||
|
|
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| <varlistentry> | ||
| <term><command>set-ntp [BOOL]</command></term> | ||
|
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||
| <listitem><para>Takes a boolean | ||
| argument. Controls whether NTP based | ||
| network time synchronization is | ||
| enabled (if | ||
| available).</para></listitem> | ||
| </varlistentry> | ||
|
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| </variablelist> | ||
|
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||
| </refsect1> | ||
|
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| <refsect1> | ||
| <title>Exit status</title> | ||
|
|
||
| <para>On success 0 is returned, a non-zero failure | ||
| code otherwise.</para> | ||
| </refsect1> | ||
|
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| <refsect1> | ||
| <title>Environment</title> | ||
|
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||
| <variablelist> | ||
| <varlistentry> | ||
| <term><varname>$SYSTEMD_PAGER</varname></term> | ||
| <listitem><para>Pager to use when | ||
| <option>--no-pager</option> is not given; | ||
| overrides <varname>$PAGER</varname>. Setting | ||
| this to an empty string or the value | ||
| <literal>cat</literal> is equivalent to passing | ||
| <option>--no-pager</option>.</para></listitem> | ||
| </varlistentry> | ||
| </variablelist> | ||
| </refsect1> | ||
|
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| <refsect1> | ||
| <title>See Also</title> | ||
| <para> | ||
| <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | ||
| <citerefentry><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | ||
| <citerefentry><refentrytitle>date</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | ||
| <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | ||
| <citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> | ||
| </para> | ||
| </refsect1> | ||
|
|
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| </refentry> |
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