Hello,
Here is the adaptation of the previous lines of code that works in my
setup (the web page [[https://www.emacswiki.org/emacs/RegularExpression]] was
helpful):
#+BEGIN_SRC
(require 'autoinsert)
(auto-insert-mode) ;;; Adds hook to find-files-hook
(setq auto-insert-directory "~/MEGA/org/my_org-templates/") ;;; Or use
custom, *NOTE* Trailing slash important
(setq auto-insert-query nil) ;;; If you don't want to be prompted before
insertion
(define-auto-insert "\.beamer-fr.org" "my-beamer-fr.org")
#+END_SRC
Now, supposing that I have to give a talk in French at Aix-en-Provence (very
nice
city!), when I open in emacs the new file aix-beamer-fr.org this file
automatically contains the lines defined in my-beamer-fr.org that is
in ~/MEGA/org/my_org-templates/ .
That is certainly trivial for a lot of people in this list (and I
apologize), but maybe it will be helpful for others.
Best wishes,
--
Jo.