dired-x: Optional Installation Dired Jump

 
 2.1 Optional Installation Dired Jump
 ====================================
 
 Miscellaneous Commands::) work _before_ ‘dired’ and ‘dired-x’ have been
 properly loaded you should set-up an autoload for these functions.  In
 your ‘.emacs’ file put
 
      (autoload 'dired-jump "dired-x"
        "Jump to Dired buffer corresponding to current buffer." t)
 
      (autoload 'dired-jump-other-window "dired-x"
        "Like \\[dired-jump] (dired-jump) but in other window." t)
 
      (define-key global-map "\C-x\C-j" 'dired-jump)
      (define-key global-map "\C-x4\C-j" 'dired-jump-other-window)