title: Remove odd lines in a text file
body: <p>File:</p>
  
  <pre><code>/home/USER/DIR/a
  http://www.here.is.a.hyper.link.net/
  /home/USER/DIR/b
  http://www.here.is.another.hyper.link.net/
  </code></pre>
  
  <p>Need to remove all the odd lines in this file (<code>PUBLIC-DIRECTORY-LIST</code>)? Its for my batch script which can be found below (dropbox batch puburl creator):</p>
  
  <pre><code>for PATH in `cat LIST`
  do
  echo $PATH
  dropbox puburl $PATH
  done &gt; PUBLIC-DIRECTORY-LIST
  </code></pre>
  
  <p>Do I just append the command to prune <code>PUBLIC-DIRECTORY-LIST</code> at the end of the script?</p>