File path to clipboard in Emacs

Question

What is the most simple way to send current full file name with file path to clipboard?

What I am using now is messages buffer: I copy file name that appears there after

Answer 1

Why no one tell the simple solution.

Just go to your dired buffer then press 0 w or C-u 0 w.

This will call dired-copy-filename-as-kill which gives you full path of a file. If you want current dir, just delete the file at the end of it or you can use the function below, then bind it to any key you like.

(defun my/dired-copy-dirname-as-kill ()
  "Copy the current directory into the kill ring."
  (interactive)
  (kill-new default-directory))

PS: personally I go to current directory from file buffer using dired-jump