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<span style="float:right">systemd 221</span><hr><div class="refentry"><a name="coredumpctl"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>coredumpctl — Retrieve coredumps from the journal</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">coredumpctl</code> [OPTIONS...] {COMMAND} [PID|COMM|EXE|MATCH...]</p></div></div><div class="refsect1"><a name="idm47190119017584"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><span class="command"><strong>coredumpctl</strong></span> may be used to
retrieve coredumps from
<a href="systemd-journald.html"><span class="citerefentry"><span class="refentrytitle">systemd-journald</span>(8)</span></a>.</p></div><div class="refsect1"><a name="idm47190114059008"></a><h2 id="Options">Options<a class="headerlink" title="Permalink to this headline" href="#Options">¶</a></h2><p>The following options are understood:</p><div class="variablelist"><dl class="variablelist"><dt id="--no-legend"><span class="term"><code class="option">--no-legend</code></span><a class="headerlink" title="Permalink to this term" href="#--no-legend">¶</a></dt><dd><p>Do not print column headers.
</p></dd><dt id="-1"><span class="term"><code class="option">-1</code></span><a class="headerlink" title="Permalink to this term" href="#-1">¶</a></dt><dd><p>Show information of a single coredump only,
instead of listing all known coredumps. </p></dd><dt id="-F"><span class="term"><code class="option">-F</code>, </span><span class="term"><code class="option">--field=</code></span><a class="headerlink" title="Permalink to this term" href="#-F">¶</a></dt><dd><p>Print all possible data values the specified
field takes in matching coredump entries of the
journal.</p></dd><dt id="-o"><span class="term"><code class="option">-o</code>, </span><span class="term"><code class="option">--output=FILE</code></span><a class="headerlink" title="Permalink to this term" href="#-o">¶</a></dt><dd><p>Write the core to <code class="option">FILE</code>.
</p></dd><dt id="-h"><span class="term"><code class="option">-h</code>, </span><span class="term"><code class="option">--help</code></span><a class="headerlink" title="Permalink to this term" href="#-h">¶</a></dt><dd><p><a name="help-text"></a>Print a short help text and exit.
</p></dd><dt id="--version"><span class="term"><code class="option">--version</code></span><a class="headerlink" title="Permalink to this term" href="#--version">¶</a></dt><dd><p><a name="version-text"></a>Print a short version string and exit.</p></dd><dt id="--no-pager"><span class="term"><code class="option">--no-pager</code></span><a class="headerlink" title="Permalink to this term" href="#--no-pager">¶</a></dt><dd><p>Do not pipe output into a pager.</p></dd></dl></div><p>The following commands are understood:</p><div class="variablelist"><dl class="variablelist"><dt id="list"><span class="term"><span class="command"><strong>list</strong></span></span><a class="headerlink" title="Permalink to this term" href="#list">¶</a></dt><dd><p>List coredumps captured in the journal
matching specified characteristics. If no command is
specified, this is the implied default.</p></dd><dt id="info"><span class="term"><span class="command"><strong>info</strong></span></span><a class="headerlink" title="Permalink to this term" href="#info">¶</a></dt><dd><p>Show detailed information about coredumps
captured in the journal.</p></dd><dt id="dump"><span class="term"><span class="command"><strong>dump</strong></span></span><a class="headerlink" title="Permalink to this term" href="#dump">¶</a></dt><dd><p>Extract the last coredump matching specified
characteristics. The coredump will be written on standard
output, unless an output file is specified with
<code class="option">-o/--output</code>. </p></dd><dt id="gdb"><span class="term"><span class="command"><strong>gdb</strong></span></span><a class="headerlink" title="Permalink to this term" href="#gdb">¶</a></dt><dd><p>Invoke the GNU debugger on the last coredump
matching specified characteristics. </p></dd></dl></div></div><div class="refsect1"><a name="idm47190114039776"></a><h2 id="Matching">Matching<a class="headerlink" title="Permalink to this headline" href="#Matching">¶</a></h2><p>A match can be:</p><div class="variablelist"><dl class="variablelist"><dt id="PID"><span class="term"><em class="replaceable"><code>PID</code></em></span><a class="headerlink" title="Permalink to this term" href="#PID">¶</a></dt><dd><p>Process ID of the
process that dumped
core. An integer.</p></dd><dt id="COMM"><span class="term"><em class="replaceable"><code>COMM</code></em></span><a class="headerlink" title="Permalink to this term" href="#COMM">¶</a></dt><dd><p>Name of the executable (matches
<code class="option">COREDUMP_COMM=</code>). Must not contain slashes.
</p></dd><dt id="EXE"><span class="term"><em class="replaceable"><code>EXE</code></em></span><a class="headerlink" title="Permalink to this term" href="#EXE">¶</a></dt><dd><p>Path to the executable (matches
<code class="option">COREDUMP_EXE=</code>). Must contain at least one
slash. </p></dd><dt id="MATCH"><span class="term"><em class="replaceable"><code>MATCH</code></em></span><a class="headerlink" title="Permalink to this term" href="#MATCH">¶</a></dt><dd><p>General journalctl predicates (see
<a href="journalctl.html"><span class="citerefentry"><span class="refentrytitle">journalctl</span>(1)</span></a>).
Must contain an equal sign. </p></dd></dl></div></div><div class="refsect1"><a name="idm47190114031072"></a><h2 id="Exit status">Exit status<a class="headerlink" title="Permalink to this headline" href="#Exit%20status">¶</a></h2><p>On success, 0 is returned; otherwise, a non-zero failure
code is returned. Not finding any matching coredumps is treated as
failure.
</p></div><div class="refsect1"><a name="idm47190114029760"></a><h2 id="Examples">Examples<a class="headerlink" title="Permalink to this headline" href="#Examples">¶</a></h2><div class="example"><a name="idm47190114029120"></a><p class="title"><b>Example 1. List all the coredumps of a program named foo</b></p><div class="example-contents"><pre class="programlisting"># coredumpctl list foo</pre></div></div><br class="example-break"><div class="example"><a name="idm47190114027728"></a><p class="title"><b>Example 2. Invoke gdb on the last coredump</b></p><div class="example-contents"><pre class="programlisting"># coredumpctl gdb</pre></div></div><br class="example-break"><div class="example"><a name="idm47190114026336"></a><p class="title"><b>Example 3. Show information about a process that dumped core,
matching by its PID 6654</b></p><div class="example-contents"><pre class="programlisting"># coredumpctl info 6654</pre></div></div><br class="example-break"><div class="example"><a name="idm47190114024848"></a><p class="title"><b>Example 4. Extract the last coredump of /usr/bin/bar to a file named
<code class="filename">bar.coredump</code></b></p><div class="example-contents"><pre class="programlisting"># coredumpctl -o bar.coredump dump /usr/bin/bar</pre></div></div><br class="example-break"></div><div class="refsect1"><a name="idm47190114022592"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="systemd-coredump.html"><span class="citerefentry"><span class="refentrytitle">systemd-coredump</span>(8)</span></a>,
<a href="coredump.conf.html"><span class="citerefentry"><span class="refentrytitle">coredump.conf</span>(5)</span></a>,
<a href="systemd-journald.service.html"><span class="citerefentry"><span class="refentrytitle">systemd-journald.service</span>(8)</span></a>,
<a href="http://man7.org/linux/man-pages/man1/gdb.1.html"><span class="citerefentry"><span class="refentrytitle">gdb</span>(1)</span></a>
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