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From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH] t7800: avoid arithmetic expansion notation
Date: Fri, 14 Oct 2011 11:00:06 -0700
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References: <837ad77348b459aa5f5f79e556dbeeeba41027e7.1318594392.git.git@drmicha.warpmail.net>
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Cc: git@vger.kernel.org, Sitaram Chamarty <sitaramc@gmail.com>
To: Michael J Gruber <git@drmicha.warpmail.net>
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In-Reply-To: <837ad77348b459aa5f5f79e556dbeeeba41027e7.1318594392.git.git@drmicha.warpmail.net> (Michael J. Gruber's message of "Fri, 14 Oct 2011 14:15:31 +0200")
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Michael J Gruber <git@drmicha.warpmail.net> writes:

> ba959de (git-difftool: allow skipping file by typing 'n' at prompt, 2011-10-08)
> introduced shell code like
>
> $((foo; bar) | baz)
>
> which some shells (e.g. bash, dash) interpret as an unfinished arithmetic
> evaluation $(( expr )).

Ahh, thanks, I should have caught this. I recall I rewrote a similar one
to $( (command; command) | command ) more than once before.