How to modify the content of a file in Emacs Lisp?
October 10, 2023
(let ((buff (find-file-noselect "./foo")))
(with-current-buffer buff
(goto-char (point-min))
(insert "foo\n")
(goto-char (point-max))
(insert "bar\n")
(save-buffer))
(kill-buffer buff))
