Scala traverse path and print file hashes

Traverse.scala

//Just for fun
//Directory Traversal 
import java.io._
import scala.io._
import java.security.MessageDigest

object Traverse
{
    def md5(s: String )= 
    {
        MessageDigest.getInstance("MD5").digest( s.getBytes ).map("%02X".format(_)).mkString  
    }
    
    def sha(s: String )=
    {
      MessageDigest.getInstance("SHA").digest( s.getBytes ).map("%02X".format(_)).mkString
    }
    
    def main( args: Array[String])
    {
        println("[+] Trevor Sibanda Learning Scala Directory Traversal")
        println("[-] Enter directory to start from: ")
        val path = "/etc/"//Console.readLine
        val root = new File(path)
        if( ! root.exists || ! root.isDirectory )
        {
          println("[!] Entered path is not a directory")
        }
        for( file <- root.listFiles().filter(_.canRead ).filter( _.isFile ).map( _.getAbsolutePath )  )
        {
          val buffer = Source.fromFile(file).mkString
          println("[-] %s\tMD5:%s \tSHA:%s".format(file, md5(buffer) , new String( sha(buffer) ) )  )
        }
        
    }
    

}