code: def manage(settingspath, root_dir, argv):
      
      # add settings.json to environment variables
      os.environ[ENV_VAR_SETTINGS] = settingspath
      # add root_dir
      os.environ[ENV_VAR_ROOT_DIR] = root_dir
      # get datasets list
      with open(settingspath) as settings_file:
          settings = json.load(settings_file)
      # manage args
      datasets_list = generate_datasets_list(settings, argv)
      if "make-data-file" == argv[1]:
          make_data_file(datasets_list, argv)
      elif "parse-data" == argv[1]:
          parse_data(datasets_list, argv)
      elif "do-operations" == argv[1]:
          do_operations(datasets_list, argv)
      else:
          print_help()
docs: Manage all processes