title: Linux Shell: remove all HTML files in tree while leaving directory structure
body: <p>I'm trying to remove all .html files from the directory <code>generated</code> and from all subfolders there but it needs to leave all other files and directories alone.</p>
  
  <p>I tried going through folder by folder and running <code>rm *.html</code> but this takes a long time as there are 20+ subfolders which also have subfolders. I tried looking the man pages for <code>rm</code> but nothing obvious jumped out. I'm sure there's a way to do this in one shot but I don't know how. Any ideas?</p>