Variable: dired-before-readin-hook
dired-before-readin-hook is a customizable variable defined in
dired.el.gz.
Value
nil
Documentation
This hook is run before a Dired buffer is read in (created or reverted).
Source Code
;; Defined in /usr/src/emacs/lisp/dired.el.gz
(defcustom dired-before-readin-hook nil
"This hook is run before a Dired buffer is read in (created or reverted)."
:group 'dired
:type 'hook)