It sure sucks if you have multiple apps using the crontab and you go to add your new task to the crontab using
whenever -w and it overwrites all of your other rules.
They have a helpful option that aids with this. It handles multiple apps or tasks
whenever --update-crontab some_identifier
Now whenever you want to overwrite that rule use the same identifier.
If you want a new rule then use a new identifier.
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