一键重置mysql的root密码脚本

 @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 
) 

::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("") 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