mysql-liunx系统下mysql常见错误

1、mysql: Character set 'gbk' is not a compiled character set and is not specified in the '/opt/mysql/share/mysql/charsets/Index.xml' file
    说明my.cnf中缺少配置参数，解决方案如下：
        1、先进入文件系统,进入/etc/，找到my.cnf文件/etc/my.cnf
        2、打开my.cnf文件，找到下面内容，然后加入红色内容:
                # The following options will be passed to all MySQL clients [client]
                #password = your_password
                port = 3306
                socket = /tmp/mysql.sock
                default-character-set=utf8  # 需要我们手动加入的语句