By default, cron will mail anything that appears on STDOUT or STDERR. So all you need to do is to make sure your program is silent on success.

Note that the "only email on failure" has a failure mode: if the program doesn't run at all, for whatever reason, you won't notice. It's better to have the program report always - then an absence of a report can be noticed.

In reply to Re: automated testing by JavaFan
in thread automated testing by Cagao

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