查看mysql版本

mysql --version

查看mysql的运行状态

systemctl status mysqld

查看mysql安装目录

which mysql
# 输出示例：/usr/bin/mysql

# 进一步查看软链接指向的实际目录
ls -l $(which mysql)
# 输出示例：lrwxrwxrwx 1 root root 22 Jun 22 2025 /usr/bin/mysql -> /usr/local/mysql/bin/mysql

[root@VM-0-11-centos ~]# which mysql
/usr/bin/mysql
[root@VM-0-11-centos ~]# ls -l $(which mysql)
lrwxrwxrwx 1 root root 26 Dec 22 13:19 /usr/bin/mysql -> /usr/local/mysql/bin/mysql

真实的安装目录是：/usr/local/mysql