On Sep 10 2020, Chet Ramey wrote:

> yy. Process substitution processes now get their input from /dev/null, since
>     they are asynchronous, not interactive, and not jobs.

That breaks scripts that want to filter stdin with a process
substitution, eg:

while read ...; do ...; done < <(filter)

The reason for using a process substitution is so that the loop can set
shell variables.

Andreas.

-- 
Andreas Schwab, sch...@linux-m68k.org
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"And now for something completely different."

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