PoshTip #16 – Writing to text file
If you need to write into a text file, you can use Add-Content PowerShell cmdlet :
$String = "Test" Add-Content C:\output.txt $String
You can also pipe Write-Ouput to Add-Content PowerShell cmdlet :
Write-output $String | Add-Content C:\output.txt
It will not overwrite existing data in the text file.