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From: Lem Novantotto <Lem@none.invalid>
Newsgroups: comp.unix.shell
Subject: Re: Iterating over a set in bash (Was: Problem with 'rm -i' in ksh)
Date: Mon, 13 Jan 2025 20:39:54 -0000 (UTC)
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Il Mon, 13 Jan 2025 02:54:02 -0000 (UTC), Kenny McCormack ha scritto:

> So, instead of:
> 
>     ... | while read ...
> 
> I will do:
> 
>     mapfile -t < <(...)
>     for i in "${MAPFILE[@]}"; do
> 	...
>     done

Your solution has its advantages, but IMHO it has many drawbacks too.
It's more memory consuming, less portable, it doesn't react promptly...
And you cannot follow and process in real time a streams, of course.
You cannot do something like:

$ while true; do echo yes; done |while read $w; do echo "$w and no"; done
-- 
Bye, Lem
		Talis erit dies qualem egeris