/* C#: The Complete Reference by Herbert Schildt Publisher: Osborne/McGraw-Hill (March 8, 2002) ISBN: 0072134852 */ /* Copy a file. To use this program, specify the name of the source file and the destination file. For example, to copy a file called FIRST.DAT to a file called SECOND.DAT, use the following command line. CopyFile FIRST.DAT SECOND.DAT */ using System; using System.IO; public class CopyFile { public static void Main(string[] args) { int i; FileStream fin; FileStream fout; try { // open input file try { fin = new FileStream(args[0], FileMode.Open); } catch(FileNotFoundException exc) { Console.WriteLine(exc.Message + " Input File Not Found"); return; } // open output file try { fout = new FileStream(args[1], FileMode.Create); } catch(IOException exc) { Console.WriteLine(exc.Message + " Error Opening Output File"); return; } } catch(IndexOutOfRangeException exc) { Console.WriteLine(exc.Message + " Usage: CopyFile From To"); return; } // Copy File try { do { i = fin.ReadByte(); if(i != -1) fout.WriteByte((byte)i); } while(i != -1); } catch(IOException exc) { Console.WriteLine(exc.Message + "File Error"); } fin.Close(); fout.Close(); } }