Group group = gbuilder.withName("Options").withOption(gramSizeOpt).withOption(helpOpt).withOption(
inputDirOpt).withOption(outputOpt).withOption(typeOpt).withOption(dataSourceOpt).withOption(alphaOpt)
.withOption(minDfOpt).withOption(minSupportOpt).withOption(skipCleanupOpt).create();
try {
Parser parser = new Parser();
parser.setGroup(group);
parser.setHelpOption(helpOpt);
CommandLine cmdLine = parser.parse(args);
if (cmdLine.hasOption(helpOpt)) {
CommandLineUtil.printHelp(group);
return;
}