title: Using command line to lowercase all text in all files?
body: <p>I've been trying out several commands such as</p>
  
  <pre><code>dd if=*.xml of=*.xml conv=lcase
  </code></pre>
  
  <p>to mass all the content of all the xml files in my folder to being lowercase.  The folders filenames are already lowercase, I'm trying to change all the actual content to being lower case as well.</p>
  
  <p>Can someone post the command to do this or tell me what I'm doing wrong?  Thanks!</p>