title: Ant copy files without overwriting
body: <p>Is there any command in ant to copy files from one folder structure to another without <s>checking the last modified date/time</s> overwriting files. Basically I want all extra files from folder A to folder B. That is: <strong>no files of folder B are replaced but extra files of folder A comes to folder B</strong>.</p>
  
  <p>I saw "ant copy" and "ant move" commands, but didn't help. Any suggestions.</p>