It's no part of your code mistakes... but your language needs correction (or, "invited pedantry" if you don't care about being clear and accurate).

You're trying to 'concatenate' two files; not "append" them. You might append a second file to the first (result: two files, the first of which contains the original contents of both), but what you're trying to do is create a third file from the first two.

In reply to Re: Appending two files by ww
in thread Appending two files by abcdefg

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