~ $ oc adm groups -hManage groups in your clusterGroups are sets of users that can be used when describing policy.Usage:  oc adm groups [options]Available Commands:  add-users    Add users to a group  new          Create a new group  prune        Prune OpenShift groups referencing missing records on an external provider.  remove-users Remove users from a group  sync         Sync OpenShift groups with records from an external provider.Use "oc adm  --help" for more information about a given command.Use "oc adm options" for a list of global command-line options (applies to all commands).