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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">
-
-<!--
- This file is part of systemd.
-
- Copyright 2012 Zbigniew Jędrzejewski-Szmek
-
- 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="coredumpctl" conditional='ENABLE_COREDUMP'
- xmlns:xi="http://www.w3.org/2001/XInclude">
-
- <refentryinfo>
- <title>coredumpctl</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Zbigniew</firstname>
- <surname>Jędrzejewski-Szmek</surname>
- <email>zbyszek@in.waw.pl</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>coredumpctl</refentrytitle>
- <manvolnum>1</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>coredumpctl</refname>
- <refpurpose>Retrieve and process saved core dumps and metadata</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <cmdsynopsis>
- <command>coredumpctl</command>
- <arg choice="opt" rep="repeat">OPTIONS</arg>
- <arg choice="req">COMMAND</arg>
- <arg choice="opt" rep="repeat">PID|COMM|EXE|MATCH</arg>
- </cmdsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><command>coredumpctl</command> is a tool that can be used to retrieve and process core
- dumps and metadata which were saved by
- <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
- </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>--no-legend</option></term>
-
- <listitem><para>Do not print column headers.</para></listitem>
- </varlistentry>
-
- <xi:include href="standard-options.xml" xpointer="no-pager" />
-
- <varlistentry>
- <term><option>-1</option></term>
-
- <listitem><para>Show information of a single core dump only, instead of listing
- all known core dumps.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-F</option> <replaceable>FIELD</replaceable></term>
- <term><option>--field=</option><replaceable>FIELD</replaceable></term>
-
- <listitem><para>Print all possible data values the specified
- field takes in matching core dump entries of the
- journal.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-o</option> <replaceable>FILE</replaceable></term>
- <term><option>--output=</option><replaceable>FILE</replaceable></term>
-
- <listitem><para>Write the core to <option>FILE</option>.
- </para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-D</option> <replaceable>DIR</replaceable></term>
- <term><option>--directory=</option><replaceable>DIR</replaceable></term>
-
- <listitem><para>Use the journal files in the specified <option>DIR</option>.
- </para></listitem>
- </varlistentry>
-
- </variablelist>
- </refsect1>
-
- <refsect1>
- <title>Commands</title>
-
- <para>The following commands are understood:</para>
-
- <variablelist>
- <varlistentry>
- <term><command>list</command></term>
-
- <listitem><para>List core dumps captured in the journal
- matching specified characteristics. If no command is
- specified, this is the implied default.</para>
-
- <para>It's worth noting that different restrictions apply to
- data saved in the journal and core dump files saved in
- <filename>/var/lib/systemd/coredump</filename>, see overview in
- <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
- Thus it may very well happen that a particular core dump is still listed
- in the journal while its corresponding core dump file has already been
- removed.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>info</command></term>
-
- <listitem><para>Show detailed information about core dumps
- captured in the journal.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>dump</command></term>
-
- <listitem><para>Extract the last core dump matching specified
- characteristics. The core dump will be written on standard
- output, unless an output file is specified with
- <option>--output=</option>. </para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>gdb</command></term>
-
- <listitem><para>Invoke the GNU debugger on the last core dump
- matching specified characteristics. </para></listitem>
- </varlistentry>
-
- </variablelist>
-
- </refsect1>
-
- <refsect1>
- <title>Matching</title>
-
- <para>A match can be:</para>
-
- <variablelist>
- <varlistentry>
- <term><replaceable>PID</replaceable></term>
-
- <listitem><para>Process ID of the
- process that dumped
- core. An integer.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><replaceable>COMM</replaceable></term>
-
- <listitem><para>Name of the executable (matches
- <option>COREDUMP_COMM=</option>). Must not contain slashes.
- </para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><replaceable>EXE</replaceable></term>
-
- <listitem><para>Path to the executable (matches
- <option>COREDUMP_EXE=</option>). Must contain at least one
- slash. </para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><replaceable>MATCH</replaceable></term>
-
- <listitem><para>General journalctl predicates (see
- <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>).
- Must contain an equal sign. </para></listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
-
- <refsect1>
- <title>Exit status</title>
- <para>On success, 0 is returned; otherwise, a non-zero failure
- code is returned. Not finding any matching core dumps is treated as
- failure.
- </para>
- </refsect1>
-
- <refsect1>
- <title>Examples</title>
-
- <example>
- <title>List all the core dumps of a program named foo</title>
-
- <programlisting># coredumpctl list foo</programlisting>
- </example>
-
- <example>
- <title>Invoke gdb on the last core dump</title>
-
- <programlisting># coredumpctl gdb</programlisting>
- </example>
-
- <example>
- <title>Show information about a process that dumped core,
- matching by its PID 6654</title>
-
- <programlisting># coredumpctl info 6654</programlisting>
- </example>
-
- <example>
- <title>Extract the last core dump of /usr/bin/bar to a file named
- <filename noindex="true">bar.coredump</filename></title>
-
- <programlisting># coredumpctl -o bar.coredump dump /usr/bin/bar</programlisting>
- </example>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd-coredump</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>coredump.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- </para>
- </refsect1>
-
-</refentry>