           <span class="keyword">case</span> <span class="string">'depth'</span>
0102                 disp(<span class="string">'depth: depth of the subdirectory hierarchy'</span>);
0103             <span class="keyword">case</span> <span class="string">'ndirs'</span>
0104                 disp(<span class="string">'ndirs: total number of directories within this directory &amp; subdirectories'</span>);
0105             <span class="keyword">case</span> <span class="string">'nbad'</span>
0106                 