Re: Knowing the name of a file from the file itself

[Andy Stewart <lazycat.manatee@gmail.com>]

Use this function 

(defun copy-buffer-file-name-as-kill(choice)
  "Copy the buffer-file-name to the kill-ring"
  (interactive "cCopy Buffer Name (F) Full, (D) Directory, (N) Name")
  (let ((new-kill-string)
        (name (if (eq major-mode 'dired-mode)
                  (dired-get-filename)
                (or (buffer-file-name) ""))))
    (cond ((eq choice ?f)
           (setq new-kill-string name))
          ((eq choice ?d)
           (setq new-kill-string (file-name-directory name)))
          ((eq choice ?n)
           (setq new-kill-string (file-name-nondirectory name)))
          (t (message "Quit")))
    (when new-kill-string
      (message "%s copied" new-kill-string)
      (kill-new new-kill-string))))

And C-y (yank) will get information your want.

abc <arcadiorubiogarcia@gmail.com> writes:

> Hi everyone,
>
> I'm a recent Emacs convert. I'm structuring my .emacs.d directory
> which has become quite messy.
>
> For that purpose, I'd like to know if it's possible to know the name
> of a file and the path to it from the file itself, like in many other
> languages, e.g. Ruby.
>
> I've looked for a variable or function for this with no luck.
>
>
> Thanks in advance.