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From: Bize Ma <binaryzebra@gmail.com>
Newsgroups: gnu.bash.bug
Subject: Re: Unexpected delay in using arguments.
Date: Sun, 23 Dec 2018 13:07:40 -0400
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Chet Ramey (<chet.ramey@case.edu>) wrote:

> On 8/15/18 3:36 AM, Bob Proulx wrote:
>
> > It does look like bash can be more efficient with argument handling.
> > Since, for example, dash does it.
>
> Yes, it just needs new primitives to do it. The existing code for managing
> the saved positional parameters has been in bash since the pre-1.0 days and
> is pretty much unchanged since then. I'll take a look.
>

Have you been able to "take a look" ?