From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Kitchin <jkitchin@andrew.cmu.edu>
Subject: Re: What is the best way to set #+DATE to today's date?
Date: Thu, 06 Aug 2015 14:18:48 -0400
Message-ID: <m2a8u4gu0n.fsf@andrew.cmu.edu>
References: <CAFyQvY1S9KWx1JoAvsXOhf4omYf__2dBroHA9nKJXB_GTGOdCQ@mail.gmail.com>
	<87bnekmknk.fsf@gmx.us>
	<CAFyQvY1AnUKLPvuY1_LON60SZdT6e98JHGpL+eA_jaJRkOcziw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:44631)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <johnrkitchin@gmail.com>) id 1ZNPkm-0006LW-Uz
	for emacs-orgmode@gnu.org; Thu, 06 Aug 2015 14:18:57 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <johnrkitchin@gmail.com>) id 1ZNPkh-0003rc-VF
	for emacs-orgmode@gnu.org; Thu, 06 Aug 2015 14:18:56 -0400
Received: from mail-qk0-x231.google.com ([2607:f8b0:400d:c09::231]:34226)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <johnrkitchin@gmail.com>) id 1ZNPkh-0003rI-RA
	for emacs-orgmode@gnu.org; Thu, 06 Aug 2015 14:18:51 -0400
Received: by qkcs67 with SMTP id s67so6896954qkc.1
	for <emacs-orgmode@gnu.org>; Thu, 06 Aug 2015 11:18:51 -0700 (PDT)
In-reply-to: <CAFyQvY1AnUKLPvuY1_LON60SZdT6e98JHGpL+eA_jaJRkOcziw@mail.gmail.com>
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: Kaushal <kaushal.modi@gmail.com>
Cc: emacs-org list <emacs-orgmode@gnu.org>, Rasmus <rasmus@gmx.us>

I use a function like that here:
https://github.com/jkitchin/jmax/blob/master/techela/techela-grade.el#L182

and to set the filetag as you suggest you would call it like this:

#+BEGIN_SRC emacs-lisp
(gb-set-filetag "DATE" (format-time-string "%b %d %Y, %a" (current-time)))
#+END_SRC

You could put that in some hook function if you like.

Kaushal writes:

>> Why don't you just use a timestamp?
>
> But that would need me to insert the timestamp manually each time before
> exports
>
>> You can update whenever you want or using
>>    (org-insert-time-stamp (current-time))
>> at the right spot.
>
> Wouldn't that too need manual navigation to #+date: and then eval that
> elisp form?

--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu