Question

If I tweak the latex/css style file used by org-mode, is there a way to re-export all the org files in a directory?

I have previously manually exported all the files.

Answer 1

One can start with this version. There are inconveniences: it pollutes kill ring and visits all org files.

(defun publish-dir-org ()
  "Publish all org files in a directory"
  (interactive)
  (save-excursion
    (mapc
     (lambda (file)
       (with-current-buffer
       (find-file-noselect file)
     (org-export-as-html-batch)))
       (file-expand-wildcards  "*.org"))))