Thanks for this but PoolA seems to be bringing up all sorts of stuff that will make it difficult to test all files in the bitcoin client.....can you think or find something more unique by any chance? 
You can linux grep for known addresses in the file. It will return a binary file warning but match.
It is also a berkeley db file, you can creatively leverage that.
I actually am using grep....not sure how to search for a berkeley db file....