1：由于本机的etc下没有my.cnf，所以从你所安装的mysql路径下/usr/local/mysql拷贝my.cnf到/etc下：

sudo cp my.cnf /etc。然后将以下内容写入my.cnf中：

[client]

port = 3306

socket = /tmp/mysql.sock

default-character-set = utf8

[mysqld]

collation-server = utf8_unicode_ci

character-set-server = utf8

init-connect ='SET NAMES utf8'

max_allowed_packet = 64M

bind-address = 127.0.0.1

port = 3306

socket = /tmp/mysql.sock

 2：编辑：/etc/profile

将以下命令加入:

alias mysql=/usr/local/mysql/bin/mysql

alias mysqladmin=/usr/local/mysql/bin/mysqladmin

source profile

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