This assumes you are familiar with the basic usage of the Gateway Migration Utility, and that you understand the basic usage of restman to view the XML of a policy or service. The /versions option can be appended to return XML that lists every version of a service.

/path/to/GatewayMigrationUtility.sh restman
-host apig.example.com
-port 8443
-username john.doe
-password f5VPX0yUJPg.m4BrjdgMv84UgktddJD3xA
-method GET
-path '1.0/services/{service_id}/versions'

Or the -argFile option can be used, to reduce the number of options that are used on the command line.

/path/to/GatewayMigrationUtility.sh restman
-argFile example.properties
-method GET
-path '1.0/services/{service_id}/versions'

The same can be done with policies.

/path/to/GatewayMigrationUtility.sh restman
-argFile example.properties
-method GET
-path '1.0/policies/{policy_id}/versions'

In the XML that is returned, there will be a block of XML for each version of the policy, and each block will contain the following tag that identifies the version of the policy.

<l7:Name>Policy Version: 1</l7:Name>

versions can be included to return each version of the service.

/path/to/GatewayMigrationUtility.sh restman
-argFile example.properties
-method GET
-path '1.0/services/{service_id}/versions'

Each version will have a unique ordinal number, such as 1 for version 1, 2 for version 2, et cetera.

<l7:ordinal>1</l7:ordinal>

The ordinal number can be used to return a specific version of the service.

/path/to/GatewayMigrationUtility.sh restman
-argFile example.properties
-method GET
-path '1.0/services/{service_id}/versions/2'

The -response option can be used to output the XML to a file.

/path/to/GatewayMigrationUtility.sh restman
-argFile example.properties
-method GET
-path '1.0/policies/{policy_id}/versions'
-response /path/to/example.xml