title: Do tools exist which automatically find copy-and-paste code?
body: <p>Are there tools out there which could automatically find copy-and-paste code among a set of files?</p>
  
  <p>I was thinking of writing a script for this, which would just search for equal strings, but such script would find mostly irrelevant equalities. (Such as <code>private final static ...</code>).</p>