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Re: What has changed in buffer?

From: Teemu Likonen
Subject: Re: What has changed in buffer?
Date: Tue, 19 Jul 2011 15:22:22 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

* 2011-07-19T08:07:54-04:00 * Neal Becker wrote:

> I go to quit emacs, or kill a buffer. It has been modified. How can I
> see what the changes are? An ediff for this would be nice.

To compare a buffer with the associated file:

    M-x diff-buffer-with-file

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