Thanks for your response! I'm just now getting back to this... I've tried the following curator_cli delete_indices --filter_list --unit_count 30 --unit days --timestring %Y.%m.%d and I get an error about --unit not being an option, yet that's what I see in the documentation. Am I not supposed to use double hyphens? Sorry... 
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Delete Indices older than 30 days
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