I'd like to combine two files together using the copy command as follows. This is simple enough using

copy /b base.txt + file1.txt combined_file1.txt

however the first part of the file (base.txt) will remain constant and the second half will be from a folder full of different file (such as file1.txt, file2.txt, file3.txt etc)

The output file should be the variable filename with combined_ added at the front.

I'd like a batch file that I can place inside the directory of files and have it automatically add base.txt to the front of all the other variable files.

  • Is Powershell and option? if so this one-liner might start you off: Get-ChildItem "Files" -Filter *.txt | Foreach-Object { (gc base.txt) + (gc ("files\"+$_.Name) ) | out-file -filepath ("files\combined_"+$_.Name)} base.txt is in the root with a files folder containing the files. – HelpingHand Dec 17 '19 at 21:27
  • The way this place works, is that you post the script that you wrote, that doesn't work, and we tell you what's wrong with it. Maybe. – Michael Harvey Dec 17 '19 at 21:28

Here is a powershell script that will do it. Just adjust the base path and the combined folder and the files folder.

$baseFilename = "c:\temp\base.txt"
$addonFolderLocation = "c:\temp\files"
$combinedFolderLocation = "c:\temp\combined\"

#Get all files in addon folder location
$addonFilenames = Get-ChildItem $addonFolderLocation

foreach ($addonFilename in $addonFilenames)
    cat $baseFilename, $addonFilename.fullname | sc "$combinedFolderLocation combined_ $addonFilename"

edit: added combined_ before filename in combined output

  • 1
    That's absolutely perfect, just tried it and it does exactly what I needed. I Googled this for quite some time and couldn't find any other post which addressed my question. Many thanks for your kind help. – Ab_Phoenix Dec 17 '19 at 23:46

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