aws ec2 describe-reserved-instances
Describes one or more of the Reserved Instances that you purchased. AWS CLI reference
5 options Its page in the AWS CLI reference
Options
--dry-runChecks whether you have the required permissions for the action, without actually making the request, and provides an error response.--filtersOne or more filters.--offering-classDescribes whether the Reserved Instance is Standard or Convertible.--offering-typeThe Reserved Instance offering type.--reserved-instances-idsOne or more Reserved Instance IDs.