// @nuget: CommandLineParser

using System.Collections.Generic;

using CommandLine;  

​

CommandLine.Parser.Default.ParseArguments<Options>(args)

    .WithParsed(RunOptions)

    .WithNotParsed(HandleParseError);

​

static void RunOptions(Options opts)

{

  //handle options

}

static void HandleParseError(IEnumerable<Error> errs)

{

  //handle errors

}

​

​

class Options

{

  [Option('r', "read", Required = true, HelpText = "Input files to be processed.")]

  public IEnumerable<string> InputFiles { get; set; }

​

  // Omitting long name, defaults to name of property, ie "--verbose"

  [Option(

    Default = false,

    HelpText = "Prints all messages to standard output.")]

  public bool Verbose { get; set; }

  [Option("stdin",

    Default = false,

    HelpText = "Read from stdin")]

  public bool stdin { get; set; }

​

  [Value(0, MetaName = "offset", HelpText = "File offset.")]

  public long? Offset { get; set; }

}

​