using System;

using CommandLine;

​

​

public class CliModel

{

    [Option(Required = true)]

    public string LINE_NUMBER { get; init; }    

}

​

public class Program

{

    public static void Main()

    {

        var args = new string[]

        {

            "--LINE_NUMBER=1"

        };

​

        var parser = new Parser(

            s =>

            {

                s.CaseSensitive = false;

                s.IgnoreUnknownArguments = true;

                s.HelpWriter = Parser.Default.Settings.HelpWriter;

            }

        );

        parser.ParseArguments<CliModel>(args)

            .WithParsed(

                opts => Console.WriteLine($"line number = {opts.LINE_NUMBER}")

            );

​

        Console.WriteLine($"CommandlineParser version: {typeof(Parser).Assembly.FullName}");

    }

}