">list of Operating Systems on which the command may be
      executed. If the current OS's name is contained in this list, the command will
      be executed. The OS's name is determined by the Java Virtual machine and is set
      in the &quot;os.name&quot; system property.
      </td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">osfamily</td>
    <td valign="top">OS family as used in the &lt;os&gt; condition.
    <em>since Ant 1.7</em></td>
    <td align="center" valign