Function to split a file into parts

splitfile.ps1

function Split-File{

    param(
        $inFile,
        $outPrefix,
        [Int32] $bufSize
    )

    $file = Get-Item -Path $inFile

    $stream = [System.IO.File]::OpenRead($inFile)
    $chunkNum = 1
    $barr = New-Object byte[] $bufSize
  
    while( $bytesRead = $stream.Read($barr,0,$bufsize)){
      $outFile = "$( $file.DirectoryName )\$( $file.Name ).$( $outPrefix )$( $chunkNum )"
      $ostream = [System.IO.File]::OpenWrite($outFile)
      $ostream.Write($barr,0,$bytesRead);
      $ostream.close();
      #echo "wrote $outFile"
      $chunkNum += 1
    }

  }

  Split-File -inFile "<file>" -outPrefix "part" -bufSize 100000