Modifies the ID format of a resource for a specified IAM user, IAMrole, or the root user for an account; or all IAM users, IAM roles,and the root user for an account.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ec2/modify-identity-id-format.html
aws ec2 modify-identity-id-format --principal-arn arn-of-iam-principal --resource resource_type --use-long-ids |
| Resource IDs - Amazon Elastic Compute Cloud : http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/resource-ids.html |