aws efs describe-file-systems
Returns the description of a specific Amazon EFS file system if either the file system CreationToken or the FileSystemId is provided. AWS CLI reference
4 options Its page in the AWS CLI reference
Options
--creation-token(Optional) Restricts the list to the file system with this creation token (String).--file-system-id(Optional) ID of the file system whose description you want to retrieve (String).--marker(Optional) Opaque pagination token returned from a previous DescribeFileSystems operation (String).--max-items(Optional) Specifies the maximum number of file systems to return in the response (integer).