From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ping Yin <pkufranky@gmail.com>
Subject: Re: [PATCH] git-cget: prints elements of C code in the git repository
Date: Tue, 24 Mar 2009 23:08:01 +0800
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Cc: Roel Kluin <roel.kluin@gmail.com>, git@vger.kernel.org
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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On Tue, Mar 24, 2009 at 9:52 PM, Johannes Schindelin
<Johannes.Schindelin@gmx.de> wrote:

>> Also, what would be more appropriate for this purpose, I think, is a git
>> sed.
>
> Just as it happens, this is a toy I am working on and off these days...
> strbuf_regsub() is already done, and half the needed code is in my version
> git grep.
>

this is my version

[alias]
sed = !git ls-files --stage | grep ^100 | awk '{print $4}' | xargs sed

Then i can do

git sed -i 's/A/B/g'