If you are not familiar with the oc command, refer to OpenShift - Getting Started with the oc command.

The oc get templates command can be used to list example templates in the openshift namespace.

~]$ oc get templates --namespace openshift
NAME                                                DESCRIPTION                                                                        PARAMETERS        OBJECTS
3scale-gateway                                      3scale's APIcast is an NGINX based API gateway used to integrate your interna...   17 (8 blank)      3
amq63-basic                                         Application template for JBoss A-MQ brokers. These can be deployed as standal...   11 (4 blank)      6
amq63-persistent                                    An example JBoss A-MQ application. For more information about using this temp...   13 (4 blank)      8
amq63-persistent-ssl                                An example JBoss A-MQ application. For more information about using this temp...   18 (6 blank)      12
amq63-ssl                                           An example JBoss A-MQ application. For more information about using this temp...   16 (6 blank)      10
apicurito                                           Design beautiful, functional APIs with zero coding, using a visual designer f...   7 (1 blank)       7
cache-service                                       Red Hat Data Grid is an in-memory, distributed key/value store.                    8 (1 blank)       4
cakephp-mysql-example                               An example CakePHP application with a MySQL database. For more information ab...   21 (4 blank)      8
cakephp-mysql-persistent                            An example CakePHP application with a MySQL database. For more information ab...   22 (4 blank)      9

The oc get templates command can also be used to determine if there are any templates in the openshift-config namespace that are used to control settings when new projects are created (see my article Create Project Template using the oc adm create-bootstrap-project-template command).

~]$ oc get templates --namespace openshift-config
NAME              DESCRIPTION   PARAMETERS    OBJECTS
project-request                 5 (5 blank)   3