interpreter-mode-alist

interpreter-mode-alist is a variable defined in `files.el'.
Its value is shown below.

• This variable may be risky if used as a file-local variable.

Documentation:
Alist mapping interpreter names to major modes.
This is used for files whose first lines match `auto-mode-interpreter-regexp'.
Each element looks like (REGEXP . MODE).
If \\`REGEXP\\' matches the name (minus any directory part) of
the interpreter specified in the first line of a script, enable
major mode MODE.

See also `auto-mode-alist'.

Value:

(("ruby1.8" . ruby-mode)
 ("ruby1.9" . ruby-mode)
 ("jruby" . ruby-mode)
 ("rbx" . ruby-mode)
 ("ruby" . ruby-mode)
 ("python[0-9.]*" . python-mode)
 ("rhino" . js-mode)
 ("gjs" . js-mode)
 ("nodejs" . js-mode)
 ("node" . js-mode)
 ("gawk" . awk-mode)
 ("nawk" . awk-mode)
 ("mawk" . awk-mode)
 ("awk" . awk-mode)
 ("pike" . pike-mode)
 ("\\(mini\\)?perl5?" . perl-mode)
 ("wishx?" . tcl-mode)
 ("tcl\\(sh\\)?" . tcl-mode)
 ("expect" . tcl-mode)
 ("octave" . octave-mode)
 ("scm" . scheme-mode)
 ("[acjkwz]sh" . sh-mode)
 ("r?bash2?" . sh-mode)
 ("dash" . sh-mode)
 ("mksh" . sh-mode)
 ("\\(dt\\|pd\\|w\\)ksh" . sh-mode)
 ("es" . sh-mode)
 ("i?tcsh" . sh-mode)
 ("oash" . sh-mode)
 ("rc" . sh-mode)
 ("rpm" . sh-mode)
 ("sh5?" . sh-mode)
 ("tail" . text-mode)
 ("more" . text-mode)
 ("less" . text-mode)
 ("pg" . text-mode)
 ("make" . makefile-gmake-mode)
 ("guile" . scheme-mode)
 ("clisp" . lisp-mode)
 ("emacs" . emacs-lisp-mode))