Re: [PATCH] Add @R parameter transform to reverse expansion order

Zachary Santer <[email protected]> Sun, 24 May 2026 19:37:11 -0400

Newsgroups	gmane.comp.shells.bash.bugs
Message-ID	<CABkLJUJiActLzMiDjvkcxaZLVQJgsQZPKSJebG_FDa_59Va9RA@mail.gmail.com>

On Mon, May 4, 2026 at 10:03 AM Chet Ramey <[email protected]> wrote:
>
> On 4/29/26 8:39 AM, Jackson Hansen wrote:
> > Implement the @R parameter transformation to reverse the order of
> > list-valued parameter expansions.
>
> Thanks for the proposal and implementation. I'll consider it for a
> future version of bash.

This would definitely see a fair bit of use. If you want to iterate
through array elements in reverse order, currently you're stuck using
an arithmetic for loop to iterate through their indices in reverse
order. Something I've done myself.