gistfile1.txt

import scala.io.Source

object ListComparer{

	def main( args: Array[String] ){
		if( args.length == 2 ){
			println( listDifferences( args(0), args(1) ) )
		}		
		else
			Console.err.println( "Needs two filenames")
			
	}
	
	def listDifferences( fileA: String, fileB: String ): List[String] = {
		val	listA = Source.fromFile( fileA ).getLines.toList
		val	listB = Source.fromFile( fileB ).getLines.toList
		listA -- listB
	}
	
}