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Most (but not all) shells tend to open the script on file descriptor 10, not 11. They keep file descriptors 0–9 clear because those are for redirections inside the script, and 10 is the first candidate. If you're seeing fd 11, it's probably because there's already something else on fd 10.

Gilles 'SO- stop being evil'
– Gilles 'SO- stop being evil'

2020-09-29 15:39:41 +00:00
Commented Sep 29, 2020 at 15:39

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