**To get a list of versions of a logger definition** The following ``list-logger-definition-versions`` example gets a list of all versions of the specified logger definition. :: aws greengrass list-logger-definition-versions \ --logger-definition-id "49eeeb66-f1d3-4e34-86e3-3617262abf23" Output:: { "Versions": [ { "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/loggers/49eeeb66-f1d3-4e34-86e3-3617262abf23/versions/5e3f6f64-a565-491e-8de0-3c0d8e0f2073", "CreationTimestamp": "2019-05-08T16:10:13.866Z", "Id": "49eeeb66-f1d3-4e34-86e3-3617262abf23", "Version": "5e3f6f64-a565-491e-8de0-3c0d8e0f2073" }, { "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/loggers/49eeeb66-f1d3-4e34-86e3-3617262abf23/versions/3ec6d3af-eb85-48f9-a16d-1c795fe696d7", "CreationTimestamp": "2019-05-08T16:10:13.809Z", "Id": "49eeeb66-f1d3-4e34-86e3-3617262abf23", "Version": "3ec6d3af-eb85-48f9-a16d-1c795fe696d7" } ] }