**To display a template summary** The following command displays summary information about the resources and metadata for the specified template file. :: aws cloudformation get-template-summary \ --template-body file://template.yaml Output:: { "Parameters": [], "Description": "A VPC and subnets.", "ResourceTypes": [ "AWS::EC2::VPC", "AWS::EC2::Subnet", "AWS::EC2::Subnet", "AWS::EC2::RouteTable", "AWS::EC2::VPCEndpoint", "AWS::EC2::SubnetRouteTableAssociation", "AWS::EC2::SubnetRouteTableAssociation", "AWS::EC2::VPCEndpoint" ], "Version": "2010-09-09" }