執行mysql mysqladmin腳本指令時不需要帳戶密碼，也不再提示警告

修改配置檔案my.cnf

cat /etc/my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
validate_password = off
innodb_file_per_table = 1
character_set_server=utf8
init_connect='SET NAMES utf8'
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[mysql] #添加以下内容
user = root
password = 12345
[client]
user = root
password = 12345
[mysqladmin]    #添加一下三句 使用mysqladmin不需要在輸入使用者密碼
user = root
password = 12345