Note: You are viewing the documentation for an older major version of the AWS CLI (version 1).

AWS CLI version 2, the latest major version of AWS CLI, is now stable and recommended for general use. To view this page for the AWS CLI version 2, click here. For more information see the AWS CLI version 2 installation instructions and migration guide.

[ aws . greengrass ]



Retrieves information about a core definition version.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--core-definition-id <value>
--core-definition-version-id <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--core-definition-id (string) The ID of the core definition.

--core-definition-version-id (string) The ID of the core definition version. This value maps to the ''Version'' property of the corresponding ''VersionInformation'' object, which is returned by ''ListCoreDefinitionVersions'' requests. If the version is the last one that was associated with a core definition, the value also maps to the ''LatestVersion'' property of the corresponding ''DefinitionInformation'' object.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.



To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal's quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To retrieve details about a specific version of the Greengrass core definition

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

aws greengrass get-core-definition-version \
    --core-definition-id "c906ed39-a1e3-4822-a981-7b9bd57b4b46"  \
    --core-definition-version-id "42aeeac3-fd9d-4312-a8fd-ffa9404a20e0"


    "Arn": "arn:aws:greengrass:us-west-2:123456789012:/greengrass/definition/cores/c906ed39-a1e3-4822-a981-7b9bd57b4b46/versions/42aeeac3-fd9d-4312-a8fd-ffa9404a20e0",
    "CreationTimestamp": "2019-06-18T16:21:21.351Z",
    "Definition": {
        "Cores": [
                "CertificateArn": "arn:aws:iot:us-west-2:123456789012:cert/928dea7b82331b47c3ff77b0e763fc5e64e2f7c884e6ef391baed9b6b8e21b45",
                "Id": "1a39aac7-0885-4417-91f6-23e4cea6c511",
                "SyncShadow": false,
                "ThingArn": "arn:aws:iot:us-west-2:123456789012:thing/GGGroup4Pi3_Core"
    "Id": "c906ed39-a1e3-4822-a981-7b9bd57b4b46",
    "Version": "42aeeac3-fd9d-4312-a8fd-ffa9404a20e0"


Arn -> (string)

The ARN of the core definition version.

CreationTimestamp -> (string)

The time, in milliseconds since the epoch, when the core definition version was created.

Definition -> (structure)

Information about the core definition version.

Cores -> (list)

A list of cores in the core definition version.


Information about a core.

CertificateArn -> (string)

The ARN of the certificate associated with the core.

Id -> (string)

A descriptive or arbitrary ID for the core. This value must be unique within the core definition version. Max length is 128 characters with pattern ''[a-zA-Z0-9:_-]+''.

SyncShadow -> (boolean)

If true, the core's local shadow is automatically synced with the cloud.

ThingArn -> (string)

The ARN of the thing which is the core.

Id -> (string)

The ID of the core definition version.

NextToken -> (string)

The token for the next set of results, or ''null'' if there are no additional results.

Version -> (string)

The version of the core definition version.