<?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="systemd-coredumpctl" conditional='ENABLE_COREDUMP'> <refentryinfo> <title>systemd-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>systemd-coredumpctl</refentrytitle> <manvolnum>1</manvolnum> </refmeta> <refnamediv> <refname>systemd-coredumpctl</refname> <refpurpose>Retrieve coredumps from the journal</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <command>systemd-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>systemd-coredumpctl</command> may be used to retrieve coredumps from <citerefentry><refentrytitle>systemd-journald</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para> </refsect1> <refsect1> <title>Options</title> <para>The following options are understood:</para> <variablelist> <varlistentry> <term><option>-h</option></term> <term><option>--help</option></term> <listitem><para>Print a short help text and exit.</para></listitem> </varlistentry> <varlistentry> <term><option>--version</option></term> <listitem><para>Print a short version string and exit.</para></listitem> </varlistentry> <varlistentry> <term><option>-F</option></term> <term><option>--field=</option></term> <listitem><para>Print all possible data values the specified field takes in matching coredump entries of the journal.</para></listitem> </varlistentry> <varlistentry> <term><option>-o</option></term> <term><option>--output=FILE</option></term> <listitem><para>Write the core to <option>FILE</option>.</para></listitem> </varlistentry> <varlistentry> <term><option>--no-pager</option></term> <listitem><para>Do not pipe output of <command>list</command> into a pager.</para></listitem> </varlistentry> <varlistentry> <term><option>--no-legend</option></term> <listitem><para>Do not print the column headers. </para></listitem> </varlistentry> </variablelist> <para>The following commands are understood:</para> <variablelist> <varlistentry> <term><command>list</command></term> <listitem><para>List coredumps captured in the journal matching specified characteristics.</para></listitem> </varlistentry> <varlistentry> <term><command>dump</command></term> <listitem><para>Extract the last coredump matching specified characteristics. Coredump will be written on stdout, unless an output file is specified with <option>-o/--output</option>. </para></listitem> </varlistentry> <varlistentry> <term><command>gdb</command></term> <listitem><para>Invoke the GNU debugger on the last coredump matching specified characteristics. </para></listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>Matching</title> <para>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 equals sign. </para></listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>Exit status</title> <para>On success 0 is returned, a non-zero failure code otherwise. Not finding any matching coredumps is treated as failure. </para> </refsect1> <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>gdb</refentrytitle><manvolnum>1</manvolnum></citerefentry> </para> </refsect1> </refentry>