code: public static Configuration parseDynamicProperties(CommandLine cmd) {
  		final Configuration config = new Configuration();
  
  		String[] values = cmd.getOptionValues(DYNAMIC_PROPERTIES_OPT);
  		if (values != null) {
  			for (String value : values) {
  				String[] pair = value.split("=", 2);
  				if (pair.length == 1) {
  					config.setString(pair[0], Boolean.TRUE.toString());
  				}
  				else if (pair.length == 2) {
  					config.setString(pair[0], pair[1]);
  				}
  			}
  		}
  
  		return config;
  	}
docs: Parse the dynamic properties (passed on the command line).