China DOS Union

@echo off 

set /p password=Please enter the password:

for /f "tokens=2" %%i in (%~nx0)  do set oldpassword=%%i

if "%password%"=="%oldpassword%" goto Modify password

cls

echo Wrong password:%password%

echo The program will automatically exit after 3 seconds.

ping -n 3 127.0.0.1>nul&goto :eof

:Modify password

cls

set /p pwd=Please modify the password:

cls

set /p pwds=Please confirm your password again:

cls

if not "%pwd%"=="%pwds%" echo Please return to enter correctly&ping /n 2 127.1>nul&goto Modify password

cls

echo Password modified successfully, the new password is %pwd%

echo :: %pwd%>>%~nx0

pause&goto :eof

:: 123456

Originally posted by fourme2009 at 2008-4-13 14:40:
This is found from the forum, and it feels very good!
@echo off
if exist M.RQM goto bn
rem llts in 0070303schj by q@251485609
@echo 12345678>M.RQM
:bn
@cls
@echo off
@echo.
@echo.
@echo.
@echo ...

Originally posted by zw19750516 at 2008-4-13 01:13 PM:
I removed the password hiding during testing, please add it yourself, the landlord.

@echo off 

if not "%pwd%"=="%pwds%" echo Please return to correct input&ping /n 2 127.1>nul&goto Modify password

cls

echo Password modified successfully, new password is %pwd%

echo :: %pwd%>>%~nx0

pause&goto :eof

:: 123456

It is better to add an empty line before echo :: %pwd%>>%~nx0,
to avoid the new password and the old password being on the same line,
then, changing the password makes you not know what the password is yourself

For example:

echo Password modified successfully, new password is %pwd%
echo.>>%~nx0
echo :: %pwd%>>%~nx0
pause&goto :eof
:: 123456

Originally posted by ZJHJ at 2009-8-8 12:07 AM:
Modifying the password of the batch file itself is not the best strategy. Because once there is an error, your batch will crash.