show databases;

MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| yourdb             |
| yourotherdb12      |
+--------------------+
5 rows in set (0.002 sec)

• MariaDB: mariadbcheck, mariabackup, mysqldump, MyRocks, show (MariaDB) MariaDB Changelog, 50-server.cnf, MariaDB engines, .ibd, .myd, .myi, /var/log/mysql/error.log, /var/log/mysql/mariadb-slow.log, MariaDB files: .frm, .ibd, /etc/mysql/mariadb.conf.d/50-server.cnf, replication, MariaDB slow queries, show databases;, Aria, MyISAM, MariaDB SkySQL, binary log, 3306, /etc/mysql/, --memlock