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From: Martin Schulte <gnu@schrader-schulte.de>
Newsgroups: gnu.bash.bug
Subject: Re: T/F var expansion?
Date: Mon, 29 Jul 2019 07:01:11 +0200
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Xref: csiph.com gnu.bash.bug:15251

Hello!

> Is there a T/F var expansion that does:
>  
>     var=${tst:+$yes}${tst:-$no}
> 
> but with yes/no in 1 expansion?

At least if you are only working with numbers you can use

((var=(tst!=0?42:31)))

But is this a question for bug-bash?

Best regards,

Martin