You can migrate administrative scripts using scripting and the wsadmin tool.
This article is about configuration migration, such as migrating deployment managers and federated nodes in a network deployment environment. The Application Migration Toolkit for WebSphere Application Server provides support for migrating applications from previous versions of WebSphere Application Server to the latest product version. For information about migrating applications, read more about the Application Migration Toolkit.
sptcfgWebSphere® Application Server Version 8.5 supports migrating administrative scripts from Version 6.1 or above.
Migrating administrative scripts from Version 6.1 or above to 8.5