China DOS Union

Delete a 11.txt
F:\>del 11.txt /p
F:\11.txt, Do you want to delete (Y/N)? y
F:\>echo %ERRORLEVEL%
0

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Delete a non-existent 12.txt
F:\>del 12.txt
File F:\12.txt not found
F:\>echo %ERRORLEVEL%
0

--------------------------------------
Delete a file without permission
F:\>del c:\ntdetect.com
c:\NTDETECT.COM
Access denied.
F:\>echo %ERRORLEVEL%
0

That's it. What's going on?

I don't know the return value of del, but deltree only returns 0

Not every command has a return value, maybe del doesn't either.

DEL is an internal command, and there should be no return value, so it's all zero.