String[] aArgs = { "perl", "-e", "print \"Hello World\"" };
  Runtime oRuntime = Runtime.getRuntime();
  Process oProcess;

  try {
      oProcess = oRuntime.exec(aArgs);
  } catch (Exception e) {
      System.out.println("error executing " + aArgs[0]);
  }
  OutputStream oOut = oProcess.getOutputStream;