using System; using System.IO; class Class1 { static void Main(string[] args) { string [] cla = Environment.GetCommandLineArgs(); if (cla.GetUpperBound(0) == 2) { FileInfo fi = new FileInfo(cla[1]); fi.CopyTo(cla[2],true); Console.WriteLine("Copied " + fi.Length + " bytes."); } else{ Console.WriteLine ("Usage: cp <input file> <output file>"); } } }