postgres=# \dn+
                          List of schemas
  Name  |  Owner   |  Access privileges   |      Description
--------+----------+----------------------+------------------------
 public | postgres | postgres=UC/postgres | standard public schema
(1 row)

postgres=# \l
                                                List of databases
   Name    |  Owner   | Encoding |  Collate   |   Ctype    | ICU Locale | Locale Provider |   Access privileges
-----------+----------+----------+------------+------------+------------+-----------------+-----------------------
 dev       | postgres | UTF8     | en_US.utf8 | en_US.utf8 |            | libc            | postgres=CTc/postgres+
           |          |          |            |            |            |                 | foo=c/postgres
 postgres  | postgres | UTF8     | en_US.utf8 | en_US.utf8 |            | libc            |
 template0 | postgres | UTF8     | en_US.utf8 | en_US.utf8 |            | libc            | =c/postgres          +
           |          |          |            |            |            |                 | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.utf8 | en_US.utf8 |            | libc            | =c/postgres          +
           |          |          |            |            |            |                 | postgres=CTc/postgres
(4 rows)

postgres=# \du
                                   List of roles
 Role name |                         Attributes                         | Member of
-----------+------------------------------------------------------------+-----------
 foo       |                                                            | {}
 postgres  | Superuser, Create role, Create DB, Replication, Bypass RLS | {}