I'm wondering if anyone has any tricks to preserve stderr on filedescriptor 2 and get xtrace output on a different file descriptor.
I've pulled hair trying to get the redirection right for this but just come up with the right combination. I'd imagine it involves stashing away fd 2, duplicating fd 2 to a new fd and then restoring fd back from where it was stashed, or somesuch. So to be clear, I want stdout on fd 1, stderr on fd 2 (as they are normally) and then the xtrace output on some other fd, presumably 3. Ideas? b.
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