确定MySQL在Linux系统中配置文件的位置

假定确定mysql位于/usr/local/mysql/bin目录

执行如下命令：/usr/local/mysql/bin/mysqld --verbose --help |grep -A 1 'Default options'

可能看到如下信息：

2019-04-14 19:18:23 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled

2019-04-14 19:18:23 0 [Note] mysqld (mysqld 5.6.42) starting as process 14944 ...

2019-04-14 19:18:23 14944 [Note] Plugin 'FEDERATED' is disabled.

Default options are read from the following files in the given order:

/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf

2019-04-14 19:18:23 14944 [Note] Binlog end

2019-04-14 19:18:23 14944 [Note] Shutting down plugin 'MyISAM'

2019-04-14 19:18:23 14944 [Note] Shutting down plugin 'CSV'

上面信息中，etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf给出的几个目录，就是mysql依次查找配置文件的位置。

假如要把目录移到/home/data下需要进行下面几步：1、home目录下建立data目录cd

/homemkdir

data2、把MySQL服务进程停掉：mysqladmin

-u

root

-p

shutdown3、把/var/lib/mysql整个目录移到/home/datamv

/var/lib/mysql/home/data/

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