aws rds describe-engine-default-parameters
Returns the default engine and system parameter information for the specified database engine. AWS CLI reference
4 options Its page in the AWS CLI reference
Options
--db-parameter-group-familyThe name of the DB parameter group family.--filtersA filter that specifies one or more parameters to describe.--markerAn optional pagination token provided by a previous DescribeEngineDefaultParameters request.--max-recordsThe maximum number of records to include in the response.