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<div class="section" id="the-pcp-command">
<h1>The <strong class="program">pcp</strong> command<a class="headerlink" href="#the-pcp-command" title="Permalink to this headline">¶</a></h1>
<div class="section" id="synopsis">
<h2>Synopsis<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
<div class="highlight-commandline"><div class="highlight"><pre><span class="l">pcp </span><span class="ge">[options]</span><span class="l"> </span><span class="nv"><source></span><span class="l"> </span><span class="ge">[<source> ...]</span><span class="l"> </span><span class="nv"><destination></span><span class="l"></span>
</pre></div>
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<div class="section" id="description">
<h2>Description<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p>The <strong class="command">pcp</strong> command is a is a wrapper that starts several
<strong class="program">sync</strong> processes to copy directory trees in parallel. This is
allows much better copying performance on file system that have
relatively high latency when retrieving individual files like S3QL.</p>
<p><strong>Note</strong>: Using this program only improves performance when copying
<em>from</em> an S3QL file system. When copying <em>to</em> an S3QL file system,
using <strong class="command">pcp</strong> is more likely to <em>decrease</em> performance.</p>
</div>
<div class="section" id="options">
<h2>Options<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<p>The <strong class="command">pcp</strong> command accepts the following options:</p>
<blockquote>
<div><table class="docutils option-list" frame="void" rules="none">
<col class="option" />
<col class="description" />
<tbody valign="top">
<tr><td class="option-group">
<kbd><span class="option">--quiet</span></kbd></td>
<td>be really quiet</td></tr>
<tr><td class="option-group">
<kbd><span class="option">--debug</span></kbd></td>
<td>activate debugging output</td></tr>
<tr><td class="option-group">
<kbd><span class="option">--version</span></kbd></td>
<td>just print program version and exit</td></tr>
<tr><td class="option-group">
<kbd><span class="option">-a</span></kbd></td>
<td>Pass -aHAX option to rsync.</td></tr>
<tr><td class="option-group" colspan="2">
<kbd><span class="option">--processes <var><no></var></span></kbd></td>
</tr>
<tr><td> </td><td>Number of rsync processes to use (default: 10).</td></tr>
</tbody>
</table>
</div></blockquote>
</div>
<div class="section" id="exit-status">
<h2>Exit Status<a class="headerlink" href="#exit-status" title="Permalink to this headline">¶</a></h2>
<p><strong class="command">pcp</strong> returns exit code 0 if the operation succeeded and 1 if some
error occured.</p>
</div>
<div class="section" id="see-also">
<h2>See Also<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
<p><strong class="command">pcp</strong> is shipped as part of S3QL, <a class="reference external" href="http://code.google.com/p/s3ql/">http://code.google.com/p/s3ql/</a>.</p>
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