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PowerShell Insert Multiple Lines or text to another file dynamically


Copying and pasting text to another file is a common thing to do, copy and paste done. Boom!

In PowerShell scripting copying and pasting text from one file to another dynamically isn’t as easy as it is done in a spreadsheet or document. Dynamically while the code is running  and doing things in the background without human intervention.

As the odds say, if there’s a will there’s a way. And making things efficient and easy is a good way in life.

If ever a scenario occurs that you need to copy text or lines in a file from one file to another, without breaking the code execution. Script below works just fine. Just insert the code where it is needed.


PowerShell code snippet to add lines anywhere on the text file, whether at the top, end or at the middle.

#================================

$reader = [System.IO.File]::OpenText("D:\test-read-paste\main1.txt") #get-content can also be used

$lineNumberx = 3 #adjust this number where you need to start inserting the text

#Loop line by line and process
while($null -ne ($line = $reader.ReadLine())) {

    $textToAdd =  $line

    $newLineToAdd =  "`n" #line feed

        $fileContent = Get-Content 'd:\test-read-paste\main2.txt'
        $fileContent[$lineNumberx-1] += $newLineToAdd
    #$fileContent | Set-Content d:\test-read-paste\main2.txt

    #$fileContent = Get-Content 'd:\test-read-paste\main2.txt'
        $fileContent[$lineNumberx-1] += $textToAdd
        $fileContent | set-Content d:\test-read-paste\main2.txt


    $lineNumberx = $lineNumberx + 1
  
}

#================================

Main-1 Text file: (sample text only - reference file)



Main-2 Text file (Before Inserting Data)



Main-2 Text file (After Inserting Data or after running the PowerShell script)



Till next time..happy coding!!!

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