Program.cs

    using System;
    using System.Configuration;

    namespace SfQuery
    {
        public class Program
        {
            private static SalesforceClient CreateClient()
            {
                return new SalesforceClient
                {
                    Username = ConfigurationManager.AppSettings["username"],
                    Password = ConfigurationManager.AppSettings["password"],
                    Token = ConfigurationManager.AppSettings["token"],
                    ClientId = ConfigurationManager.AppSettings["clientId"],
                    ClientSecret = ConfigurationManager.AppSettings["clientSecret"]
                };
            }

            static void Main(string[] args)
            {
                var client = CreateClient();

                if (args.Length > 0)
                {
                    client.Login();
                    Console.WriteLine(client.Query(args[0]));
                } 
                Console.ReadLine();
            }
        }
    }