1 using System;
 2 using System.IO;
 3 
 4 class Test 
 5 {
 6     
 7     public static void Main() 
 8     {
 9         string path = Path.GetTempFileName();
10         FileInfo fi1 = new FileInfo(path);
11 
12         //Create a file to write to.
13         using (StreamWriter sw = fi1.CreateText()) 
14         {
15             sw.WriteLine("Hello");
16             sw.WriteLine("And");
17             sw.WriteLine("Welcome");
18         }    
19 
20         //Open the file to read from.
21         using (StreamReader sr = fi1.OpenText()) 
22         {
23             string s = "";
24             while ((s = sr.ReadLine()) != null) 
25             {
26                 Console.WriteLine(s);
27             }
28         }
29 
30         try 
31         {
32             string path2 = Path.GetTempFileName();
33             FileInfo fi2 = new FileInfo(path2);
34 
35             //Ensure that the target does not exist.
36             fi2.Delete();
37 
38             //Copy the file.
39             fi1.CopyTo(path2);
40             Console.WriteLine("{0} was copied to {1}.", path, path2);
41 
42             //Delete the newly created file.
43             fi2.Delete();
44             Console.WriteLine("{0} was successfully deleted.", path2);
45 
46         } 
47         catch (Exception e) 
48         {
49             Console.WriteLine("The process failed: {0}", e.ToString());
50         }
51     }
52 }