Powershell script to split CSV files

csvsplit.ps1

param ($source, $lines)
if ($source -eq $null) {
	$source = read-host -Prompt "Please enter a filename" 
}
if ($lines -eq $null) {
	$lines = read-host -Prompt "Please enter the number of lines for each chunk" 
}

# variable used to store the path of the source CSV file
$sourceCSV = $source;
$InputFilename = Get-Content $sourceCSV
$outname = (Get-Item $sourceCSV).Basename;
$startrow = 0 ;
$counter = 1 ;

while ($startrow -lt $InputFilename.Length) {
	Import-CSV $sourceCSV | select-object -skip $startrow -first $lines | Export-CSV "$outname chunk$($counter).csv" -NoClobber -notype;
	$startrow += $lines;
	$counter++ ;
}