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From: Junio C Hamano <gitster@pobox.com>
Subject: Re: Help creating git alias
Date: Thu, 31 Oct 2013 12:41:26 -0700
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Cc: David Aguilar <davvid@gmail.com>,
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To: Eugene Sajine <euguess@gmail.com>
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	(Eugene Sajine's message of "Thu, 31 Oct 2013 15:31:08 -0400")
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Eugene Sajine <euguess@gmail.com> writes:

> One note: i tried the ${GIT_PREFIX:-.}  and ${GIT_PREFIX} and it seems
> to give the same results. What is the expected difference here?

GIT_PREFIX may be an empty string when you run from the top-level,
in which case you would end up with "cd && ..." and end up working
in your $HOME.