dd><code>command</code> - </dd><dd><code>arg</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
<dd><code><a href="../../../../../org/apache/nutch/protocol/ftp/FtpExceptionCanNotHaveDataConnection.html" title="class in org.apache.nutch.protocol.ftp">FtpExceptionCanNotHaveDataConnec