using System;

using System.Text;

using CommandLine; // package: CommandLineParser version: 1.9.71

​

public class Program

{

    public static void Main()

    {

        string[] args = {"-s", "sample\\sourcepath", "-e", "sample\\destinationpath", "-p", "*.log*"}; //-s <source> -e <destination> [-d <no of days>] -p <pattern>

        var options = new Options();

        if (!CommandLine.Parser.Default.ParseArguments(args, options))

        {

            Console.WriteLine("invalid Arguments");

            Console.WriteLine("Usage:");

            Console.WriteLine(options.GetUsage());

            return;

        }

        else

        {

            Console.WriteLine(options.ToString());

        }

    }

​

    public class Options

    {

        [Option('s', "source", Required = true, HelpText = "Source Path")]

        public string Source

        {

            get;

            set;

        }

​

        [Option('e', "destination", Required = true, HelpText = "Destination Path")]

        public string Destination

        {

            get;

            set;

        }

​

        [Option('d', "days", Required = false, DefaultValue = 30, HelpText = "no of days")]

        public int NoOfDays

        {

            get;

            set;

        }

​

        [Option('h', "hours", Required = false, HelpText = "no of hours")]

        public int NoOfHours

        {

            get;

            set;

        }

​

        [Option('m', "minutes", Required = false, HelpText = "no of minutes")]

        public int NoOfMinutes

        {

            get;

            set;

        }

​

        [Option('p', "pattern", Required = true, HelpText = "file name pattern")]

        public string Pattern

        {

            get;

            set;

        }

​

        public string GetUsage()

        {

            var usage = new StringBuilder();

            usage.AppendLine("ApplicationName.exe -s <source> -e <destination> [-d <no of days>] -p <pattern>");

            return usage.ToString();

        }

​

        public override string ToString()

        {

            return string.Format("Source = {0}\tDestination = {1}\tPattern = {2}\tNoOfDays = {3}", this.Source, this.Destination, this.Pattern, this.NoOfDays);

        }

    }

}