To send reports on the execution of cron tasks to 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 run does not display any information after execution, then add output commands to the script to get reports on task launches, like