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
mysql
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