// Create a random file under the directory for security reasons.
String uuid = cmd.getExtractLinkUUID();
command = new Script("touch", s_logger);
command.add(extractDir + uuid);
result = command.execute();
if (result != null) {
String errorString = "Error in creating file " +uuid+ " ,error: " + result;
s_logger.warn(errorString);
return new CreateEntityDownloadURLAnswer(errorString, CreateEntityDownloadURLAnswer.RESULT_FAILURE);
}