How to get commnd prompt data to a file


  1. Posts : 154
    Win 10
       #1

    How to get commnd prompt data to a file


    I'm running a bat file in Command Prompt and want to capture it's output to a text file.
    I though "> filename" on the end of the command would redirect to a file, but it writes an empty file.
    Any solution ?
    Thanks.
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  2. Ztruker's Avatar
    Posts : 13,505
    Windows 10 Pro X64 20H4 19042.746
       #2

    You want to use 2>&1> filename. That should capture both error (stderror) and normal output in filename.

    For instance: dir c:\*.* 2>&1> c:\users\youraccountname\desktop\outfile.txt See later @Bree post
    Corrected: dir c:\*.* > c:\users\youraccountname\desktop\outfile.txt 2>&1

    will place the output of the dir command in the file outfile.txt on your desktop.

    If problems, post the contents of the batch file here and we can help get it working.
    Last edited by Ztruker; 28 Oct 2018 at 18:33.
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  3. Posts : 154
    Win 10
    Thread Starter
       #3

    Yes I can get a file written with a directory listing, and if I don't specify a path it goes to the same folder (which is ok).
    But I cannot get the output sent to the file, it always prints to the console and writes an empty file. My batch file is

    ffmpeg.exe -nostats -i u80_258a.mp3 -filter_complex ebur128=peak=true -f null - 2>&1>outputfile9.txt
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  4. Bree's Avatar
    Posts : 18,631
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #4

    In the words of the late great Eric Morcombe, you've got all the right notes, but not necessarily in the right order...

    Try: ffmpeg > output.txt 2>&1
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  5. Posts : 154
    Win 10
    Thread Starter
       #5

    Brilliant! Yes, thanks very much all working now :)
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  6. Bree's Avatar
    Posts : 18,631
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #6

      My Computers


 

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