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Editorial Team
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Asked: 2026-06-17T20:49:02+00:00

Let’s say in a batch file, I want to execute myCommand asynchronously (without waiting

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Let’s say in a batch file, I want to execute myCommand asynchronously (without waiting for it to finish). And I don’t want to execute myCommand in a new console window.

At the same time, I want to redirect the output of myCommand to output.txt

So in the batch file, if I write

START myCommand > output.txt

output.txt will be empty and I will see a new window.

If I write 

myCommand > output.txt

then I cannot execute it asynchronously.

Is there any way I can achieve all these three requirements? (asynchronously, no new window, redirect output)

Thanks!

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1 Answer

  1. Editorial Team

    I haven’t tested it fully, but I think this may work:

    start /b "" myCommand >output.txt

    I believe both forms work fine – the only difference is if standard error is redirected as well and START fails to launch myCommand.

    Redirecting START: both myCommand and START output are redirected to the file.

    start /b "" myCommand >output.txt >2&1

    Redirecting myCommand only: Only myCommand output is redirected. Any START error message will appear on the screen. Note, I opted to escape the redirection instead of using quotes like jeb.

    start /b "" myCommand ^>output.txt ^>2^&1
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