How do I prevent Emacs from creating backup copies of buffers I don\'t wish to save when I kill buffers that have not been saved?
I would advice you to use something like:
(defvar backup-dir "~/.emacs.d/backups/")
(setq backup-directory-alist (list (cons "." backup-dir)))
This way you can have all backup files in one directory.
See Here
Short version: put
(setq make-backup-files nil)
in you .emacs file, or toggle this feature at any time with M-x auto-save-mode
.
Here is the Emacs Manual Node.
If you don't want emacs to litter your drive with backup files try adding the following to your .emacs file:
(setq backup-directory-alist '(("." . "~/emacs-backups")))
This will store every backup in a single location.