.. _comments: Comments //////// Comments are enclosed between pre-processor lines **%comment** and **%end** . These lines are then ignored when the file is being pre-processed, either for running the job or for the manual-page. You cannot, however, **comment-out** a part of the manual page. Since comments are processed before a job is created they can be placed anywhere in the script. Just remember that comments do not **nest** and that you cannot use comments inside manual pages. (You can, of course, change the **%manual** to be **%comment** ) The following extract is an example of using comments: .. code-block:: shell mars << EOF RETRIEVE, PARAM=10U/10V,DATE=..., %comment temp mod by OP / 1.1.2012 BC TARGET="/xx/yy/zz", %end TARGET="zz", END EOF And the following is the corresponding output when pre-processed. mars << EOF RETRIEVE, PARAM=10U/10V,DATE=..., TARGET="zz", END EOF