To receive reports on the execution of cron tasks by mail, when adding or when editing a task, specify the mailing address in the field “Send report to e-mail»:
Sending reports is based on the use of standard I / O streams in Unix systems. The report is sent only if the script displays any result or error. It is this information that will be in the body of the letter.
>> /dev/null 2>&1).
If the script being launched does not display any information after execution, then in order to receive reports about the task launches, you should add output commands to the script, like