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in reply to Re^2: compare two files and print the differences of file 2 in a third file
in thread compare two files and print the differences of file 2 in a third file

Your issue is that you are not reading GOODFILEproperly.

You thanked me for taking the time to look at your code.
I will now thank you to take the time to actually try the answer I gave you.

Click on the spoiler link below to see what the problem is.