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From: David <bouncingcats@gmail.com>
Newsgroups: gnu.bash.bug
Subject: Re: T/F var expansion?
Date: Mon, 29 Jul 2019 18:08:21 +1000
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Xref: csiph.com gnu.bash.bug:15256

On Mon, 29 Jul 2019 at 14:18, L A Walsh <bash@tlinx.org> wrote:
>
> Is there a T/F var expansion that does:

[...]

>
> Sorry if this is already implemented in some form, I'm just
> not remembering there being one.

Your message is not a bug report. The list
  help-bash@gnu.org>
exists to help with questions like this.