title: List Unique Strings in Source Code
body: <p>I am after a utility that will list unique strings in many source code files. Anything in [az,AZ,09,.] of length at least 1 character. Once I find them I will make a list of strings with old values and new values beside them.</p>
  
  <p>I tried <code>findstr /R [a-z] *.*</code> but it just lists the lines. I want one string per line without any special characters (eg '"![]{}()*/+=- etc).</p>
  
  <p>Many of the linux utilities have been ported to Windows and I'd be happy to use  them like <a href="https://superuser.com/questions/300815/grep-equivalent-for-windows-7">Grep equivalent for Windows 7?</a> or <a href="https://superuser.com/questions/581561/is-there-a-better-way-to-do-this-command-to-find-strings-in-a-file-excluding-spe">Is there a better way to do this command to find strings in a file excluding special characters?</a></p>