Hello Monks. I need to be able to check if a file, which will change version names frequently, is in a directory, then I need to be able to grab that file name. I can't figure out how to do it. Help please.

For example, the file will be names something like Something_binaries-
+R5.23.0.0_patch_V5.0.29.0_DiffList.txt.

So I want to search a directory for*_patch_*_DiffList.txt, 
grab the file name and do whatever I need to do with it.
[download]

Is there a way to do this? I'm assuming there is, but have not been able to find what I'm looking for. It help if you know what key words you need for your search lol.