emacs / vi file permissions etc
 

Say I have some files which are owned by a group 'dev'. I want to edit these files using emacs / gvim or whatever else, while logged into X as bob for eg.

When the file I want to edit is opened however it can't be written to based on permissions. Is there someway to start emacs /gvim etc as a different user?
eg.
gvim -su dev
or something like that.
Thanks.

Sure. Login is as 'bob' and open up a Konsole and type 'su root' or just 'su' and then type the admin pass and then start upp vi or EmaX