Describes one or more of your compute environments.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/batch/describe-compute-environments.html
aws batch describe-compute-environments --compute-environments unmanagedCE --query computeEnvironments[].ecsClusterArn |
| Creating a Compute Environment - AWS Batch : http://docs.aws.amazon.com/batch/latest/userguide/compute_environments.html |