If you want the same crontab file on all SP nodes, one way to update it across the whole SP System is:
If you change the default configuration to modify the hierarchy of file collection servers, you need to modify the crontabs files to reflect the new relationship. See Modifying the file collection hierarchy for more information. If you create your own file collections, you will also need to add them to the supper update commands in the crontabs file to keep them on schedule with the other upgrades.