您的 linux 机器上似乎没有运行 mysql 服务.您可以使用 systemctl

It looks like mysql service is not running on your linux machine. You can check the whether the service is running or not using systemctl

systemctl status mysql

如果服务没有运行，您可以使用 systemctl

If the service is not running you can start the service using systemctl

sudo systemctl start mysql

但这只会为当前会话启动服务.如果您重新启动机器，您必须再次启动 mysql 服务器.要在重新启动时自动启动服务，请执行

But this will start the service for the current session only. If you reboot the machine you have to again start the mysql server. To auto start the service on reboot execute

sudo systemctl enable mysql