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<li class="toctree-l2 current"><a class="current reference internal" href="#">log command</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#syntax">Syntax</a></li>
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<div class="section" id="log-command">
<span id="index-0"></span><h1>log command</h1>
<div class="section" id="syntax">
<h2>Syntax</h2>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">log</span> <span class="n">file</span> <span class="n">keyword</span>
</pre></div>
</div>
<ul class="simple">
<li>file = name of new logfile</li>
<li>keyword = <em>append</em> if output should be appended to logfile (optional)</li>
</ul>
</div>
<div class="section" id="examples">
<h2>Examples</h2>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">log</span> <span class="n">log</span><span class="o">.</span><span class="n">equil</span>
<span class="n">log</span> <span class="n">log</span><span class="o">.</span><span class="n">equil</span> <span class="n">append</span>
</pre></div>
</div>
</div>
<div class="section" id="description">
<h2>Description</h2>
<p>This command closes the current LAMMPS log file, opens a new file with
the specified name, and begins logging information to it. If the
specified file name is <em>none</em>, then no new log file is opened. If the
optional keyword <em>append</em> is specified, then output will be appended
to an existing log file, instead of overwriting it.</p>
<p>If multiple processor partitions are being used, the file name should
be a variable, so that different processors do not attempt to write to
the same log file.</p>
<p>The file &#8220;log.lammps&#8221; is the default log file for a LAMMPS run. The
name of the initial log file can also be set by the command-line
switch -log. See <a class="reference internal" href="Section_start.html#start-7"><span class="std std-ref">Section 2.7</span></a> for
details.</p>
</div>
<div class="section" id="restrictions">
<h2>Restrictions</h2>
<blockquote>
<div>none</div></blockquote>
<p><strong>Related commands:</strong> none</p>
</div>
<div class="section" id="default">
<h2>Default</h2>
<p>The default LAMMPS log file is named log.lammps</p>
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