Emacs: what is the shortcut key to clear buffer?

Question

Like, Control-A (select all) followed by delete?

Answer 1

These macros build on the answers given above. To start using them paste them into your .emacs then restart emacs or (while in the .emacs buffer) type M-x eval-buffer.

(defun clear-buffer ()
  "clear whole buffer add contents to the kill ring"
  (interactive)
  (kill-region (point-min) (point-max))
  )

(defun clear-buffer-permenantly ()
  "clear whole buffer, contents is not added to the kill ring"
  (interactive)
  (delete-region (point-min) (point-max))
  )