finding renamed files

[David Glasgow]

I am looking for a quick and dirty method for walking a directory and 
finding files that have been renamed by the user.  I don't need to find 
them all, just as many as possible.  The folders are likely to 
originally contain matching stems and progressive numbers pjf017.jpg, 
pjf018 .jpg, pfj019 .jpg etc. etc, with the user renamed files standing 
out completely arbitrarily by not following the pattern .

At the moment I do this using the eyeball test, which is remarkably 
quick and efficient but very very very boring because there are often 
thousands of files to scan.  One approach I thought of is to 
progressively filter the folders' contents by nibbling a character off 
the end of the first filename.  If it is completely unique (and 
possibly therefore renamed), nothing will happen.  However if  9 other 
files disappear, it was a name representative of progressive pattern.  
Nibble another character, and so on until it is gone, and any filenames 
left over didn't fit the dominant pattern in the folder.  Yes?  No? .  
Any other suggestions?

Best Wishes,

David Glasgow
Carlton Glasgow Partnership

http://www.i-psych.co.uk