批处理脚本为Mysql重置root密码（重置密码为123456）

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@echo off

title mysql

::从注册表找到Mysql的安装路径写入文件mysql.txt
reg query HKLM\SYSTEM\ControlSet001\Services\MySQL | find /I "ImagePath">C:\mysql.txt
if %errorlevel% neq 0 (
echo MySQL not found
pause
exit
)

::以”为分隔符，截取第二段内容保存到变量mysqlPath
FOR /F tokens^=2^ delims^=^" %%i in (C:\mysql.txt) do set mysqlPath=%%i
del C:\mysql.txt /f

::路径中/替换为\
set mysqlPath=%mysqlPath:/=\%

::删除路径最后一个字符（该字符不可见，可能是回车换行之类的）
set mysqlPath=%mysqlPath:~0,-1%

:BACKTOMAIN

::取得路径最后一个字符看等不等于\
set character=%mysqlPath:~-1,1%

::如果最后一个字符不等于\，那么跳转到GETPATH删除mysqlPath的最后一个字符
if not %character% == \ goto GETPATH

::进入mysql安装路径C:\Program Files\MySQL\MySQL Server 5.0\bin
cd /d "%mysqlPath%"

::echo %mysqlPath%

if %errorlevel% neq 0 (
echo MySQL not found
pause
exit
) www.jbxue.com

::禁用mysql服务，跳过权限验证修改密码
taskkill /F /IM mysqld-nt.exe
net stop mysql >nul
start /b mysqld-nt --skip-grant-tables
ping -n 2 127.0.0.1 >nul
echo use mysql >c:\config.tmp
echo update user set password=password("") where user="root";>>C:\config.tmp
echo flush privileges; >>C:\config.tmp
echo exit >>C:\config.tmp

::因为是交互式，所以从文件读取内容
mysql <C:\config.tmp
taskkill /F /IM mysqld-nt.exe
net stop mysql >nul
net start mysql
del C:\config.tmp /F
pause
exit

::删除路径最后一个字符，跳回主程序
:GETPATH
set mysqlPath=%mysqlPath:~0,-1%
goto BACKTOMAIN
如果是用wamp一键安装需要改一些脚本，主要是注册表搜索路径改变，返回值改变，服务名改变了，mysql安装路径变成D:\wamp\bin\mysql\mysql5.5.24\bin，少了mysqld-nt这个东西，进程里面也没有mysqld-nt.exe
@echo off

title mysql

reg query HKLM\SYSTEM\ControlSet001\Services\wampmysqld | find /I "ImagePath">C:\mysql.txt

if %errorlevel% neq 0 (
echo MySQL not found
pause
exit
)

FOR /F "tokens=3 delims= " %%i in (C:\mysql.txt) do set mysqlPath=%%i
del C:\mysql.txt /f
set mysqlPath=%mysqlPath:/=\%
set mysqlPath=%mysqlPath:~0,-1%

:BACKTOMAIN
set character=%mysqlPath:~-1,1%
if not %character% == \ goto GETPATH
cd /d "%mysqlPath%"

::echo %mysqlPath%

if %errorlevel% neq 0 (
echo MySQL not found
pause
exit
)

taskkill /F /IM mysqld.exe
net stop wampmysqld >nul
start /b mysqld -nt --skip-grant-tables
ping -n 2 127.0.0.1 >nul
echo use mysql >c:\config.tmp
echo update user set password=password("123456") where user="root";>>C:\config.tmp
echo flush privileges; >>C:\config.tmp
echo exit >>C:\config.tmp

mysql <C:\config.tmp

taskkill /F /IM mysqld.exe
net stop wampmysqld >nul
net start wampmysqld
del C:\config.tmp /F

pause
exit

:GETPATH
set mysqlPath=%mysqlPath:~0,-1%
goto BACKTOMAIN

批处理脚本为Mysql重置root密码（重置密码为123456）

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原文地址：http://www.cnblogs.com/gqrbkw/p/5553273.html