rt <span class="application">psql</span>.
   </p><p>
    Examples in this manual can also be found in the
    <span class="productname">PostgreSQL</span> source distribution
    in the directory <code class="filename">src/tutorial/</code>.  (Binary
    distributions of <span class="productname">PostgreSQL</span> might not
    provide those files.)  To use those
    files, first change to that directory and run <span class="application">make</span>:

</p><pre class="screen">
<code class="prompt">$</code> <st