Re: how to not change the working directory when opening a file

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

>>>>>> "Francis" == Francis Moreau <francis.moro@gmail.com> writes:
> 
>     Francis> Hello list, I'd like Emacs to not changing the working
>     Francis> directory when opening a file.
> 
>     Francis> For example when doing:
> 
>     Francis> $ pwd /home/fmoreau/tmp $ emacs /tmp/foo.txt
> 
>     Francis> I'd like the current working directory to be
>     Francis> "/home/fmoreau/tmp" when editing "/tmp/foo.txt" in emacs.
> 
>     Francis> This is useful when composing an email.  I sometime need
>     Francis> to include the output of a shell command but this shell
>     Francis> command must be executed in the directory where emacs was
>     Francis> launched.
> 
>     Francis> Does anybody can give me a hint to do that ?

Can't you use the variable default-directory? Ie do

   M-: (setq default-directory "/my-full-dir-path/")

when you are in that files buffer.