title: Remove special characters in linux files
body: <p>I have a lot of files *.java, *.xml. But a guy wrote some comments and Strings with spanish characters. I been searching on the web how to remove them.</p>
  
  <p>I tried <code>find . -type f -exec sed 's/[áíéóúñ]//g' DefaultAuthoritiesPopulator.java</code> just as an example, how can i remove these characters from many other files in subfolders?</p>