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From: Alain Ketterlin <alain@dpt-info.u-strasbg.fr>
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Subject: Re: file path in buffer name
Date: Mon, 16 Nov 2009 20:11:26 +0100
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matlantis <matlantis@gmx.de> writes:

> i have to edit multiple files with the same file name (CMakeLists.txt) and
> since emacs gives the buffer the name of the file and adding a number to it,
> it is very hard to decide with buffer has which file.
>
> So what i need is a method to say emacs to make the buffer name looking like
> "CMakeLists.txt in <path>". Even better would be if <path> could be
> abbreviated to 30 characters, but thats not important.

M-x customize-group RET uniquify RET

should let you change and save the settings.

-- Alain.