n> argument to the <span class="emphasis"><em>db</em></span>
                 <span class="bold"><strong>close</strong></span> command will stop it from
                 attempting to write the changes to the backing file; instead, they
                 will be silently discarded.
            </p>
            <p>
                 For all of the previous reasons, the <span class="bold"><strong>-source</strong></span> file is generally used to specify
                 databases that are read-only for Berkeley