Grok Pattern line description

localhost CROND[1979]: (root) CMD (run-parts /etc/cron.hourly)

How can I write this in the grok pattern path?

I have a project that I should give tomorrow morning.
So I have to reach the direct result.Thanks for help.

Try to use this:

%{SYSLOGHOST:logsource} %{PROG:program}(?:[%{POSINT:pid}])?: (%{USER:cron_user}) %{DATA:cron_action} (%{DATA:cron_message})

Don’t forget to study documentation:
https://docs.graylog.org/en/3.1/pages/extractors.html#using-grok-patterns-to-extract-data

Great examples you can also find in:

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