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From: konsolebox <konsolebox@gmail.com>
Newsgroups: gnu.bash.bug
Subject: Re: test -v and environment variable names with subscripts
Date: Fri, 20 Jul 2018 02:44:03 +0800
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Approved: bug-bash@gnu.org
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On Wed, Jul 18, 2018 at 5:19 AM, Grisha Levit <grishalevit@gmail.com> wrote:
> $ set -u; unset var; f() { test -v 'var[0]'; echo $?; }; var[0]=X f
> 0
> -bash: var[0]: unbound variable

I'm not getting this error.  What version of bash are you using?

-- 
konsolebox