194 lines
8.4 KiB
XML
194 lines
8.4 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-escape"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-escape</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-escape</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-escape</refname>
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<refpurpose>Escape strings for usage in system unit names</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>systemd-escape <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">STRING</arg></command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd-escape</command> may be used to
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escape strings for inclusion in systemd unit
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names. The command may be used to escape and to undo
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escaping of strings.</para>
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<para>The command takes any number of strings on the
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command line, and will process them individually, one
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after the other. It will output them separated by
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spaces to stdout.</para>
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<para>By default this command will escape the strings
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passed, unless <option>--unescape</option> is passed
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which results in the inverse operation being
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applied. If <option>--mangle</option> a special mode
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of escaping is applied instead, which assumes a string
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to be already escaped but will escape everything that
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appears obviously non-escaped.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>--suffix=</option></term>
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<listitem><para>Appends the specified
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unit type suffix to the escaped
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string. Takes one of the unit types
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supported by systemd, such as
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<literal>.service</literal> or
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<literal>.mount</literal>. May not be
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used in conjunction with
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<option>--template=</option>,
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<option>--unescape</option> or
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<option>--mangle</option>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--template=</option></term>
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<listitem><para>Inserts the escaped
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strings in a unit name template. Takes
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a unit name template such as
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<filename>foobar@.service</filename>
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May not be used in conjunction with
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<option>--suffix=</option>,
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<option>--unescape</option> or
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<option>--mangle</option>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--path</option></term>
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<term><option>-p</option></term>
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<listitem><para>When escaping or
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unescaping a string, assume it refers
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to a file system path. This enables
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special processing of the initial
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<literal>/</literal> of the
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path.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--unescape</option></term>
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<listitem><para>Instead of escaping
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the specified strings, undo the
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escaping, reversing the operation. May
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not be used in conjunction with
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<option>--suffix=</option>,
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<option>--template=</option> or
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<option>--mangle</option>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--mangle</option></term>
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<listitem><para>Like
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<option>--escape</option>, but only
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escape characters that are obviously
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not escaped yet, and possibly
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automatically append an appropriate
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unit type suffix to the string. May
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not be used in conjunction with
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<option>--suffix=</option>,
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<option>--template=</option> or
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<option>--unescape</option>.</para></listitem>
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</varlistentry>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>Escape a single string:</para>
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<programlisting>$ systemd-escape 'Hallöchen, Meister'
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Hall\xc3\xb6chen\x2c\x20Meister</programlisting>
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<para>To undo escaping on a single string:</para>
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<programlisting>$ systemd-escape -u 'Hall\xc3\xb6chen\x2c\x20Meister'
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Hallöchen, Meister</programlisting>
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<para>To generate the mount unit for a path:</para>
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<programlisting>$ systemd-escape -p --suffix=mount "/tmp//waldi/foobar/"
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tmp-waldi-foobar.mount</programlisting>
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<para>To generate instance names of three strings</para>
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<programlisting>$ systemd-escape --template=systemd-nspawn@.service 'My Container 1' 'containerb' 'container/III'
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systemd-nspawn@My\x20Container\x201.service systemd-nspawn@containerb.service systemd-nspawn@container-III.service</programlisting>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success, 0 is returned, a non-zero failure
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code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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