[RBASE-L] - Checking for the existence of PDF files?

[Michael J. Sinclair]

Hi All,
Is there a way to check to see if there are any PDF files (or any other 
specific extension) in a folder? or better yet get a count of the number of 
files based on a file extension in a folder? 
As of now, I capture the output of the DIR command and extract the information 
form the output.
Is there a better way?
Mike