linux下查看mysql启动状态

【1】ps -ef|grep mysqld 看看是否有mysqld_safe 和mysqld进程

[root@localhost ~]# ps -ef|grep mysqld

显示结果：

1）root      4052 29869  0 10:25 pts/0    00:00:00 grep mysqld
2）root     30905     1  0 10:14 pts/0    00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/localhost.localdomain.pid
3）mysql    31231 30905  1 10:14 pts/0    00:00:09 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/data/localhost.localdomain.err --pid-file=/usr/local/mysql/data/localhost.localdomain.pid --socket=/tmp/mysqld.sock --port=3306

【2】如果已添加到系统服务中，可以service mysqld status

[root@localhost ~]# service mysqld status

显示结果：
 SUCCESS! MySQL running (31231)