init.el: MacのキーボードでMetaAltSuperHyper ref: http://qiita.com/kaz-yos/items/4cdb603fc8b54ee1ff73

file0.txt

;;; Mac-only configuration to use command and options keys
(when (eq system-type 'darwin)
  ;; Mac-only
  ;; Command key as Meta key, Option key untouched
  ;; http://www.emacswiki.org/emacs/MetaKeyProblems#toc15
  ;; http://ergoemacs.org/emacs/emacs_hyper_super_keys.html
  ;;
  ;; left command
  (setq mac-command-modifier 'meta)
  ;; left option
  (setq mac-option-modifier 'alt)
  ;;
  ;; right command
  (setq mac-right-command-modifier 'super)
  ;; right option
  (setq mac-right-option-modifier 'hyper)
  ;;
  ;; Mac Binding modifier keys
  ;; http://www.emacswiki.org/emacs/EmacsForMacOS#toc23
  ;; mac-function-modifier
  ;; mac-control-modifier
  ;; mac-command-modifier
  ;; mac-option-modifier
  ;; mac-right-command-modifier
  ;; mac-right-control-modifier
  ;; mac-right-option-modifier
  ;; values can be 'control (C), 'alt (A), 'meta (M), 'super (s), or 'hyper (H).
  ;; setting to nil allows the OS to assign values
  )

file1.txt

(global-set-key (kbd "s-g")   'magit-status)