Diff Ignoring GUIDS

Question

When using Diff, how would one go about ignoring line differences that only diff on GUID's? Something along the lines of:

diff -I "^.*[a-zA-Z0-9]{8}\-[a-zA-Z0-9]{4}\-[a-zA-Z0-9]{5}\-[a-zA-Z0-9]{5}\-[a-zA-Z0-9]{12}.*$"

Where obviously the above doesn't work, but just to get an idea of what is needed.

Answer 1

Can you pipe the output of diff to a grep -v and use your pattern?

Answer 2

Perhaps you could first pipe the input files through sed to remove anything matching a GUID, then perform the diff.