A few letters of cronjob

Question

I have 3 vacancies in my crontab. I want to receive emails if only one of them fails, and not for the other two. Is there a way to limit email to one type of cronjob?

Answer 1

Redirect the output of two that you don't like /dev/nullif you never want to see the output or any file if you do.

Answer 2

Your cron probably supports this:

# This job produces mail.
* * * * * echo Hello

# These jobs do not.
MAILTO=
* * * * * echo Foo
* * * * * echo Bar