Date: Fri, 27 Oct 2000 11:46:00 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: Martin Stromberg <Martin DOT Stromberg AT lu DOT erisoft DOT se>
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In-reply-to: <200010270805.KAA00023@lws256.lu.erisoft.se> (message from Martin
	Stromberg on Fri, 27 Oct 2000 10:05:31 +0200 (MET DST))
Subject: Re: Bash 2.04 beta 6a
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> From: Martin Stromberg <Martin DOT Stromberg AT lu DOT erisoft DOT se>
> Date: Fri, 27 Oct 2000 10:05:31 +0200 (MET DST)
> 
> bash$ perl5 -e 'system("bash -c \"echo \$-\n\"");'
> s
> 
> Hence perl's bash invocation is non-interactive.

I'm not sure this is the correct way of testing this.  The original
command invoked ECHO differently ("echo #foo|"), which might be
invoking the shell in some subtly different way, e.g. because it
redirects the standard handles.  I think you need to test the
interactive/non-interactive aspect in the same way.