China DOS Union

Haha, I think the echo command is the most destructive. If you don't believe me, try using "for /r %i in (*) do echo >%i" in a partition! All data sectors will be overwritten; isn't that powerful? Even data recovery software (such as Final Data) cannot recover the files, and even if they are recovered, the files become empty shells and are severely damaged. Commands like format, rd, del, and deltree might still be recoverable. The type command mentioned by the 76th floor has the same effect. Type and cd have similar effects to echo in that they can write garbage data to files, achieving the purpose of destroying files!

[ Last edited by slx8528 on 2010-1-10 at 18:27 ]

Originally posted by electronixtar at 2006-8-26 22:44:
> Is it a command?

What he means is to use
commands (echo, copy, cd)>file

Basic pattern: write command+>+target file
Write garbage data to the file! This will invalidate the file data!

[ Last edited by slx8528 on 2010-1-10 at 18:27 ]

Wow, I admire you, COPY. However, I am willing to use GHOST to damage the hard drive. I made a BAT file myself, and with a few hundred KB ultra-small GHO file, it can instantly restore and destroy the hard drive. I have tested it many times in a virtual machine. Moreover, all the files inside the GHO are basically the same as Windows files, but the files are all empty. HaHa.

Originally posted by slx8528 at 2010-1-10 03:49 PM:
Haha, I think the echo command is the most destructive. If you don't believe me, try running "for /r %i in (*) do echo >%i" in a partition!
The data area will be overwritten. Isn't that powerful? Use data recovery software (such as ...

In that case, any DOS command with screen display output would be very destructive.

After reading the original poster's explanation, I selected "copy".

It should be: WIPE?
Let me check. I have it!

C:\Documents and Settings\Administrator>copy nul L:\Windows\System32\poqexec.exe

Overwrite L:\Windows\System32\poqexec.exe? (Yes/No/All): yes
Access denied.
0 file(s) copied.

I personally think that being forced to flash the BIOS is quite frustrating, especially for laptops. You would have to desolder it and then reflash it.

Thanks for sharing

First is ntsd.
Second is debug.
Debug can perform all the above functions.
Ntsd goes without saying.
But philosophically speaking, it is cmd.exe or command.exe, as all commands run within its environment.
If there are any shortcomings, please feel free to point them out.
welcome to http://correy.webs.com

[ Last edited by correy on 2010-12-22 at 18:38 ]

Originally posted by Aadmin at 2019-2-20 19:00:
fdisk
It seems good

If the Linux dd command is ported, we can directly write zeros to the hard drive...