Copy-File2.ps1

1. <# 
2. .SYNOPSIS 
3.     This script creates a file, then reads it and displays the output. 
4. .DESCRIPTION 
5.     This script implements the MSDN sample for this page. It first creates a file (assuming the file 
6.     does not already exist) and writes three lines to it. The script then opens the file, reads each 
7.     line and displays it.    
8.      
9. .NOTES 
10.     File Name  : Copy-File2.ps1 
11.     Author     : Thomas Lee - tfl@psp.co.uk 
12.     Requires   : PowerShell Version 2.0 
13. .LINK 
14.     This script posted to: 
15.         http://pshscripts.blogspot.com/2010/07/copy-file2ps1.html
16.     MSDN Sample posted at: 
17.         http://msdn.microsoft.com/en-us/library/system.io.file.aspx        
18.         http://msdn.microsoft.com/en-us/library/system.io.file.createtext.aspx
19.         http://msdn.microsoft.com/en-us/library/system.io.file.opentext.aspx
20. .EXAMPLE 
21.     PSH [C:\foo]: . 'E:\PowerShellScriptLib\System.Io.File\Copy-File2.PS1' 
22.     Hello 
23.     And 
24.     Welcome  
25. #> 
26.    
27. # Set name of file to use for this script 
28. $path = "c:\foo\MyTest.txt" 
29.    
30. # Create the file if it does not already exist 
31. if (![System.IO.File]::Exists($path))  { 
32.   $sw = [System.Io.File]::CreateText($path) 
33.   $sw.WriteLine("Hello") 
34.   $sw.WriteLine("And") 
35.   $sw.WriteLine("Welcome") 
36. } 
37.    
38. # Open the file to read from and set $s to an empty string 
39. $sr = [System.Io.File]::OpenText($path) 
40. $s = ""; 
41.  
42. # Loop through the file, line at a time and display the output 
43. while (($s = $sr.ReadLine()) -ne $null)  { 
44.   $s 
45. } 
46.   
47. # And close the reader/writer 
48. $sw.Close() 
49. $sr.Close() 

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