+++ /dev/null
-<?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">
-
-<!--
- 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="systemd-cat"
- xmlns:xi="http://www.w3.org/2001/XInclude">
-
- <refentryinfo>
- <title>systemd-cat</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>systemd-cat</refentrytitle>
- <manvolnum>1</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>systemd-cat</refname>
- <refpurpose>Connect a pipeline or program's output with the journal</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <cmdsynopsis>
- <command>systemd-cat <arg choice="opt" rep="repeat">OPTIONS</arg> <arg>COMMAND</arg> <arg choice="opt" rep="repeat">ARGUMENTS</arg></command>
- </cmdsynopsis>
- <cmdsynopsis>
- <command>systemd-cat <arg choice="opt" rep="repeat">OPTIONS</arg></command>
- </cmdsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><command>systemd-cat</command> may be used to connect the
- standard input and output of a process to the journal, or as a
- filter tool in a shell pipeline to pass the output the previous
- pipeline element generates to the journal.</para>
-
- <para>If no parameter is passed, <command>systemd-cat</command>
- will write everything it reads from standard input (stdin) to the
- journal.</para>
-
- <para>If parameters are passed, they are executed as command line
- with standard output (stdout) and standard error output (stderr)
- connected to the journal, so that all it writes is stored in the
- journal.</para>
- </refsect1>
-
- <refsect1>
- <title>Options</title>
-
- <para>The following options are understood:</para>
-
- <variablelist>
- <xi:include href="standard-options.xml" xpointer="help" />
- <xi:include href="standard-options.xml" xpointer="version" />
-
- <varlistentry>
- <term><option>-t</option></term>
- <term><option>--identifier=</option></term>
-
- <listitem><para>Specify a short string that is used to
- identify the logging tool. If not specified, no identification
- string is written to the journal.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-p</option></term>
- <term><option>--priority=</option></term>
-
- <listitem><para>Specify the default priority level for the
- logged messages. Pass one of
- <literal>emerg</literal>,
- <literal>alert</literal>,
- <literal>crit</literal>,
- <literal>err</literal>,
- <literal>warning</literal>,
- <literal>notice</literal>,
- <literal>info</literal>,
- <literal>debug</literal>, or a
- value between 0 and 7 (corresponding to the same named
- levels). These priority values are the same as defined by
- <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
- Defaults to <literal>info</literal>. Note that this simply
- controls the default, individual lines may be logged with
- different levels if they are prefixed accordingly. For details
- see <option>--level-prefix=</option> below.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--level-prefix=</option></term>
-
- <listitem><para>Controls whether lines read are parsed for
- syslog priority level prefixes. If enabled (the default), a
- line prefixed with a priority prefix such as
- <literal><5></literal> is logged at priority 5
- (<literal>notice</literal>), and similar for the other
- priority levels. Takes a boolean argument.</para></listitem>
- </varlistentry>
-
- </variablelist>
-
- </refsect1>
-
- <refsect1>
- <title>Exit status</title>
-
- <para>On success, 0 is returned, a non-zero failure code
- otherwise.</para>
- </refsect1>
-
- <refsect1>
- <title>Examples</title>
-
- <example>
- <title>Invoke a program</title>
-
- <para>This calls <filename noindex='true'>/bin/ls</filename>
- with standard output and error connected to the journal:</para>
-
- <programlisting># systemd-cat ls</programlisting>
- </example>
-
- <example>
- <title>Usage in a shell pipeline</title>
-
- <para>This builds a shell pipeline also invoking
- <filename>/bin/ls</filename> and writes the output it generates
- to the journal:</para>
-
- <programlisting># ls | systemd-cat</programlisting>
- </example>
-
- <para>Even though the two examples have very similar effects the
- first is preferable since only one process is running at a time,
- and both stdout and stderr are captured while in the second
- example, only stdout is captured.</para>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>logger</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- </para>
- </refsect1>
-
-</refentry>
~ianmdlvl / elogind.git / blobdiff