Diff return values

[Peter . Arnold]

I'm not sure if this is the correct place to address the question, if not
perhaps you can point me in right direction.
I'm running the diff command(with no options) within a C shell script on an
HP box. I'm using an awk program to strip off header and trailer records of
files and then comparing them. The return code I get from the 'diff' is a
2. I've looked all over the net to try to find out what a 2 means. The only
thing I can find is that it's an error or it means there is a problem. Can
you help in being more definitive or perhaps point me to where I can get a
better answer. From what I can tell, there is nothing unusual about the
files, either in terms of size or characteristics. They are both ascii text
files.


Thanks.....Pete Arnold