[CMD] {FOR /L %%parameter IN (start,step,end) DO type FILE >> FILE} cause an infinite loop.

File tested: cmd.exe (reactos-bootcd-0.4.15-dev-537-g35de9f3-x86)

Steps to reproduce the error:

1. Start ReactOS or Windows XP.

2. Run ReactOS CMD.

3. Run a  batch with this content:

echo "Let's break ReactOS" > example.txt

for /l %%i in (1,1,2) do type example.txt >> example.txt

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Expected result with the Windows CMD: Finishes with 4 lines written.

Result in ReactOS with the ReactOS CMD: A typing infinite loop of the string start. The system is not able to handle with it, mostly freeze in the loop.

Result in XP-SP3 with the ReactOS CMD: A typing infinite loop of the string start. The system is continuing the loop until you got null space.