== About ChangingMode == I create a lot of files from emacs and I was troubled by the fact that I had to manually change major mode from fundamental to a more suiting major mode for many of the files I had created (For example scripts without the .sh suffix). Thus, I created this mode which changes the major mode when the buffer is saved, as if it was closed and opened again (or subject of revert-buffer). As a bonus it also sets the execution bit on the file if it's a script, i.e. if the first row begins with ###!##. I haven't looked for a solution which doesn't require the manual M-x customize-variable. == The code == (defun set-auto-mode-keep-if-same() (set-auto-mode t)) ;; Change the default major mode to changing-mode with M-x customize-variable major-mode (define-derived-mode changing-mode fundamental-mode "Changing" "Major mode which changes the major mode when saving" (add-hook 'after-save-hook #'set-auto-mode-keep-if-same nil t) (add-hook 'after-save-hook #'executable-make-buffer-file-executable-if-script-p nil t)) == Activating the mode == Change the default major mode from fundamental-mode to changing-mode with M-x customize-variable RET major-mode ---- CategoryModes