Deal with the arguments

   
 
using System;
class SayHello {
    public static void Main(string[] args) {
        if (args.Length > 0) {
            foreach (string arg in args) {
                if (arg.Equals("/help"))
                    Console.WriteLine("Run this program as follows: sayhello.exe [name1] ");
                else
                    Console.WriteLine("Hello " + "{0}", arg);
            }
        } else
            Console.WriteLine("For help, run sayhello.exe /help");

    }
}