[Orgmode] agenda with only deadlines?

[Michael Gilbert]

Hi --

I'm still struggling with this one: My main agenda view has both  
scheduled and deadlined items, but I'm interested in creating a custom  
view that shows only items who have a deadline of today or past due.  
This isn't working for me:

(setq org-agenda-custom-commands
     '(("d" "Due today" agenda ""
         ((org-deadline-warning-days 0)
          (org-agenda-skip-scheduled-if-deadline-is-shown t)
          (org-agenda-skip-function '(org-agenda-skip-entry-if 'notdeadline))))
        ))

This one shows all sorts if items that have deadlines in the future,  
displaying them as scheduled. Yes, many items item have both  
timestamps. Suggestions?


TIA!


-- Michael

P.S. Also, the documentation often lists various settings as  
"examples". I am not an experienced emacs user, so I am curious... how  
do I go about finding comprehensive lists of settings for various  
contexts?