The simplest way to check an mariadb is runnning

systemctl status mariadb

● mariadb.service - MariaDB 10.3 database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled) Active: active (running) since Wed 2023-11-01 08:02:11 AEDT; 6h ago Docs: man:mysqld(8) Process: 1869 ExecStartPost=/usr/libexec/mysql-check-upgrade (code=exited, status=0/SUCCESS) Process: 1278 ExecStartPre=/usr/libexec/mysql-prepare-db-dir mariadb.service (code=exited, status=0/SUCCESS) Process: 1225 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS) Main PID: 1320 (mysqld) Status: “Taking your SQL requests now…” Tasks: 49 (limit: 50675) Memory: 1.0G CGroup: /system.slice/mariadb.service └─1320 /usr/libexec/mysqld –basedir=/usr