In Neo4j 4.0, we introduced these commands to help you manage a Neo4j instance and users.
Note that in 4.0, these commands had to be issued from the system database.
SHOW DATABASES
SHOW DATABASE [DEFAULT DATABASE] | [<database-name>]
SHOW USERS
SHOW USER <user-name>
SHOW [ALL | POPULATED] ROLES [WITH USERS}
SHOW ROLE <role-name> PRIVILEGES
