检查mysql的服务进程
ps -ef|grep mysql
ps -ef|grep mysql
74 96 1 0 23 519 ?? 55:54.03
/usr/local/mysql/bin/mysqld --user=_mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --log-error=/usr/local/mysql/data/mysqld.local.err --pid-file=/usr/local/mysql/data/mysqld.local.pid --keyring-file-data=/usr/local/mysql/keyring/keyring --early-plugin-load=keyring_file=keyring_file.so --default_authentication_plugin=mysql_native_password
501 24161 12336 0 10:47下午 ttys003 0:00.04 mysql -u root -p
501 24309 24266 0 11:02下午 ttys004 0:00.01 grep mysql
Mac中直接在体系偏好设置中找到mysql服务，就可以在configuration中找到mysql的装置方位、数据方位、pid文件方位
