     <p>
          <span class="bold"><strong>-txn txnid</strong></span> 
            </p>
            <p>
                 If the operation is part of an application-specified transaction, the
                 <span class="bold"><strong>txnid</strong></span> parameter is a transaction
                 handle returned from <span class="emphasis"><em>env</em></span> <span class="bold"><strong>txn</strong></span>.  If no transaction handle is specified,
                 but the -auto_commit flag is specified,