Substring match:

http://stackoverflow.com/questions/636381/what-is-the-best-way-to-do-a-substring-in-a-batch-file
http://stackoverflow.com/questions/343518/finding-out-the-file-name-of-the-running-batch-file
http://stackoverflow.com/questions/7005951/batch-file-find-if-substring-is-in-string-not-in-a-file