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How to use 2 FOR loop in a batch dos command

/ Published in: DOS Batch
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This code will simply add the filename in front of each line for all files that match *.txt. This way, you can combine a large number of CSV files into 1 file by using a pipe redirect.

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  1. @echo off
  2. FOR /F "tokens=*" %%F in ('dir *.txt /b') do FOR /F "tokens=*" %%L in (%%F) do echo %%F,%%L >> CombinedFile.txt

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