**To get a device definition version**

The following ``get-device-definition-version`` example retrieves information about the specified version of the specified device definition. To retrieve the IDs of all versions of the device definition, use the ``list-device-definition-versions`` command. To retrieve the ID of the last version added to the device definition, use the ``get-device-definition`` command and check the ``LatestVersion`` property.  ::

    aws greengrass get-device-definition-version \
        --device-definition-id "f9ba083d-5ad4-4534-9f86-026a45df1ccd" \
        --device-definition-version-id "83c13984-6fed-447e-84d5-5b8aa45d5f71"

Output::

    {
        "Definition": {
            "Devices": [
                {
                    "CertificateArn": "arn:aws:iot:us-west-2:123456789012:cert/6c52ce1b47bde88a637e9ccdd45fe4e4c2c0a75a6866f8f63d980ee22fa51e02",
                    "ThingArn": "arn:aws:iot:us-west-2:123456789012:thing/ExteriorTherm",
                    "SyncShadow": true,
                    "Id": "ExteriorTherm"
                },
                {
                    "CertificateArn": "arn:aws:iot:us-west-2:123456789012:cert/66a415ec415668c2349a76170b64ac0878231c1e21ec83c10e92a18bd568eb92",
                    "ThingArn": "arn:aws:iot:us-west-2:123456789012:thing/InteriorTherm",
                    "SyncShadow": true,
                    "Id": "InteriorTherm"
                }
            ]
        },
        "Version": "83c13984-6fed-447e-84d5-5b8aa45d5f71",
        "CreationTimestamp": "2019-09-11T00:15:09.838Z",
        "Id": "f9ba083d-5ad4-4534-9f86-026a45df1ccd",
        "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/devices/f9ba083d-5ad4-4534-9f86-026a45df1ccd/versions/83c13984-6fed-447e-84d5-5b8aa45d5f71"
    }