This is the official manual for the latest Org-mode release.

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14.12 Batch execution

Org mode features, including working with source code facilities can be invoked from the command line. This enables building shell scripts for batch processing, running automated system tasks, and expanding Org mode's usefulness.

The sample script shows batch processing of multiple files using org-babel-tangle.

     # -*- mode: shell-script -*-
     # tangle files with org-mode
     # wrap each argument in the code required to call tangle on it
     for i in $@; do
         FILES="$FILES \"$i\""
     emacs -Q --batch \
          --eval "(progn
          (require 'org)(require 'ob)(require 'ob-tangle)
          (mapc (lambda (file)
                 (find-file (expand-file-name file \"$DIR\"))
                 (kill-buffer)) '($FILES)))" 2>&1 |grep -i tangled