Variable: executable-prefix

executable-prefix is a customizable variable defined in executable.el.gz.

Value

"#!"

Documentation

Interpreter magic number prefix inserted when there was no magic number.

Use of executable-prefix-env is preferable to this option.

This variable was added, or its default value changed, in Emacs 26.1.

Probably introduced at or before Emacs version 26.1.

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/executable.el.gz
(defcustom executable-prefix "#!"
  "Interpreter magic number prefix inserted when there was no magic number.
Use of `executable-prefix-env' is preferable to this option."
  :version "26.1"                       ; deprecated
  :type 'string)