for an Medium article codding step

flutter_generate.dart

import 'package:args/args.dart';

main(List<String> arguments) {
  final ArgParser argParser = ArgParser();

  argParser.addOption("name", abbr: "n");

  ArgResults results = argParser.parse(arguments);

  if (results['name'] != null) {
    print('First executable that only print the given name ' + results['name']);
  } else {
    print('pub global run flutter_generate --name YourName');
  }
}