安装lnmp后，忘记phpmyadmin的root密码，怎么办

• 如果忘记MySQL root密码，如何重设密码？
  执行如下命令：wget http://soft.vpser.net/lnmp/ext/reset_mysql_root_password.sh;sh reset_mysql_root_password.sh 按提示操作即可
• 下面是脚本里面的内容：

  #!/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) != "" ]; then
      printf "Error: You must be root to run this script!\n"
      exit
  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
  fi
  
  printf "Stoping MySQL...\n"
  /etc/init.d/mysql stop
  printf "Starting MySQL with skip grant tables\n"
  /usr/local/mysql/bin/mysqld_safe --skip-grant-tables >/dev/null >& &
  printf "using mysql to flush privileges and reset password\n"
  sleep
  printf "update user set password = Password('$mysql_root_password') where User = 'root'\n"
  /usr/local/mysql/bin/mysql -u root mysql << EOF
  update user set password = Password('$mysql_root_password') where User = 'root';
  EOF
  
  reset_status=`echo $?`
  if [ $reset_status = "" ]; then
  printf "Password reset succesfully. Now killing mysqld softly\n"
  killall mysqld
  sleep
  printf "Restarting the actual mysql service\n"
  /etc/init.d/mysql start
  printf "Password successfully reset to '$mysql_root_password'\n"
  else
  printf "Reset MySQL root password failed!\n"
  fi