【MySQL】重置MySQL的root密码与修改MySQL默认字符集
Jun 07, 2016 pm 03:46 PM第一次在Rails开发中使用MySQL数据库,结果root密码也不知道如何安装的,始终无法登录root,于是想到重置密码,在网上找了很多办法,下面这个是最靠谱的: 新建一个脚本如下: #!/bin/bashPATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbi
第一次在Rails开发中使用MySQL数据库,结果root密码也不知道如何安装的,始终无法登录root,于是想到重置密码,在网上找了很多办法,下面这个是最靠谱的:
新建一个脚本如下:
#!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH # Check if user is root if [ $(id -u) != "0" ]; then printf "Error: You must be root to run this script!\n" exit 1 fi echo "=========================================================================\n" printf "Reset MySQL root Password for LNMP , Written by Licess \n" printf "=========================================================================\n" printf "LNMP is a tool to auto-compile & install Nginx+MySQL+PHP on Linux \n" printf "This script is a tool to reset mysql root password for lnmp \n" printf "For more information please visit http://www.lnmp.org \n" printf "\n" printf "Usage: sh reset_mysql_root_password.sh\n" printf "=========================================================================\n" mysql_root_password="" read -p "(Please input New MySQL root password):" mysql_root_password if [ "$mysql_root_password" = "" ]; then echo "Error: Password can't be NULL!!\n" exit 1 fi printf "Stoping MySQL...\n" /etc/init.d/mysql stop printf "Starting MySQL with skip grant tables\n" /usr/bin/mysqld_safe --skip-grant-tables >/dev/null 2>&1 & printf "using mysql to flush privileges and reset password\n" sleep 10 printf "update user set password = Password('$mysql_root_password') where User = 'root'\n" /usr/bin/mysql -u root mysql <br> <p><span>其中有些地方需要自己手工修改,例如:</span></p> <pre class="brush:php;toolbar:false">/usr/bin/mysqld_safe --skip-grant-tables >/dev/null 2>&1 &
在我的电脑中输入命令: whereis mysqld_safe
结果如下:
mysqld_safe: /usr/bin/mysqld_safe /usr/bin/X11/mysqld_safe /usr/share/man/man1/mysqld_safe.1.gz
所以根据个人情况就修改第31行。
还有一个是第35行,我执行:whereis mysql,结果如下:
mysql: /usr/bin/mysql /etc/mysql /usr/lib/mysql /usr/bin/X11/mysql /usr/include/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz
至于MySQL默认字符集的修改如下:
这里只考虑linux系统,找到/etc/mysql/my.cnf ,使用root权限打开,
做以下改动:
配置文件中添加如下内容: [client] default-character-set=utf8 [mysqld] character_set_server=utf8 init_connect='SET NAMES utf8'
修改完后,重启mysql的服务,service mysql restart
使用 mysql> SHOW VARIABLES LIKE 'character%';查看,发现数据库编码均已改成utf8。

Hot Article

Hot tools Tags

Hot Article

Hot Article Tags

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

PHP's big data structure processing skills

How to optimize MySQL query performance in PHP?

WiFi calling not working on iPhone: Fix

How to easily get the WiFi password of a connected mobile phone (quickly find the WiFi password saved in the mobile phone)

How to use MySQL backup and restore in PHP?

What should I do if my Win10 password does not meet the password policy requirements? What to do if my computer password does not meet the policy requirements?

How to insert data into a MySQL table using PHP?

What are the application scenarios of Java enumeration types in databases?
