Copy-File.ps1

1. <# 
2. .SYNOPSIS 
3.     This script displays the usage of the Exists and the 
4.     copy methods of System.IP.File   
5. .DESCRIPTION 
6.     This script sets up two file names, then checks to see if 
7.     the sorucefile exists. if so, it's copied to a new file. 
8. .NOTES 
9.     File Name  : copy-file.ps1 
10.     Author     : Thomas Lee - tfl@psp.co.uk 
11.     Requires   : PowerShell V2 CTP3 
12. .LINK 
13.     This script posted to: 
14.         http://www.pshscripts.blogspot.com 
15.     MSDN Sample posted at: 
16.         http://msdn.microsoft.com/en-us/library/system.io.file.exists.aspx 
17. .EXAMPLE 
18.     PSH [C:\foo]: .\Copy-File.PS1' 
19.     Source File (c:\foo\Test.txt) copied to (c:\foo\Test2.txt) 
20. #> 
21.  
22. ## 
23. # start of script 
24. ## 
25.  
26. # Setup source and destination files 
27. $SourceFile = "c:\foo\Test.txt"; 
28. $NewFile    = "c:\foo\Test2.txt"; 
29.  
30. # Now - check to see if $Sourcefile exists, and if so, 
31. # copy it to $newfile  
32. if ([System.IO.File]::Exists($SourceFile))  { 
33.    [System.IO.File]::Copy($SourceFile, $NewFile) 
34.    "Source File ($SourceFile) copied to ($newFile)" 
35. } 
36. else { 
37. "Source file ($Sourcefile) does not exist." 
38. } 
39. # End of script 

Technorati Tags: PowerShell,script,System.IO.File

Happy 1st Birthday To HTTP://PshScripts.Blogspot.Com!!!

I’ve been posting scripts here for just over a year – the first script was posted on July 5th 2008. There have been 127 posts, and the downloadable script library now has 141 scripts.

Here are some monthly stats for the past year:

 

The readership of the blog was not great till I started posting in ernest in November. Since then, there’s been a slow rise each month as more folks find the blog. When I first started this blog, the idea was to post just scripts – on the assumption that folks would find them using Google, et al. And that’s pretty much what has happened. Looking at the last 20 blog hits as an example: 3 of the 20 were direct access, with 17 coming from a referral. Of the 17 referrals, 12 came from Google (google.com, google.it, google.co.uk, google.bg, google.pl), 2 from Bing and one each from Hal Rotenbergs blog, Technet and PowerShell.com. It’s also clear that the readership is pretty international:

Technorati Tags: Happy Birthday

I hope this blog and the scripts posted here have been of use. Please feel free to comment on other scripts you’d like to see here!

Compare-Int32.ps1

1. <# 
2. .SYNOPSIS 
3.     This script illustrates the CompareExchange Method 
4. .DESCRIPTION 
5.     This script creates three values, and calls CompareExchange method, 
6.     and displays the results. The first time, we compare two non-equal values 
7.     so no exchange is done. The second time, the comparison succeeds and the 
8.     value us updated.    
9. .NOTES 
10.     File Name  : Compare-Int32.ps1 
11.     Author     : Thomas Lee - tfl@psp.co.uk 
12.     Requires   : PowerShell V2 CTP3 
13. .LINK 
14.     This script posted to: 
15.         http://www.pshscripts.blogspot.com 
16.     MSDN Sample posted at: 
17.         http://msdn.microsoft.com/en-us/library/801kt583.aspx 
18. .EXAMPLE 
19.     PSH [C:\foo]: .\Compare-int32.PS1 
20.     Before 1st call: 
21.     42 
22.     69 
23.     104 
24.   
25.     After 1st call, before 2nd 
26.     42 
27.     69 
28.     104 
29.   
30.     After 2nd call 
31.     69 
32.     69 
33.     104 
34. #> 
35.  
36. ## 
37. # Start of Script 
38. ## 
39.  
40. # Create 3 int32 values 
41.  
42. [int32] $a=42 
43. [int32] $b=69 
44. [int32] $c=104 
45.  
46. # Display values before 
47. "Before 1st call:";$a,$b,$c 
48. "" 
49.  
50. # Call CompareExchange and print results 
51. # This call compares $a with $c, so there are not equal 
52. $result = [System.Threading.Interlocked]::CompareExchange([ref]$a, $b, $c) 
53. "After 1st call, before 2nd" 
54. $a,$b,$c 
55. "" 
56.  
57. # Call CompareExchange and print results 
58. # This call compares $a with $A, so this call 
59. # returns $a updated to $b 
60. $result = [System.Threading.Interlocked]::CompareExchange([ref]$a, $b, $a) 
61. "After 2nd call" 
62. $a,$b,$c 

Technorati Tags: PowerShell,script,System.Threading.Interlocked

Compare-Double

1. <# 
2. .SYNOPSIS 
3.     This script illustrates the CompareExchange Method 
4. .DESCRIPTION 
5.     This script creates three values, and calls CompareExchange method, 
6.     and displays the results. The first time, we compare to non-equal values 
7.     so no exchange is done. The second time, the comparison succeeds and the 
8.     value us updated.    
9. .NOTES 
10.     File Name  : Compare-Double.ps1 
11.     Author     : Thomas Lee - tfl@psp.co.uk 
12.     Requires   : PowerShell V2 CTP3 
13. .LINK 
14.     This script posted to: 
15.         http://www.pshscripts.blogspot.com 
16.     MSDN Sample posted at: 
17.         http://msdn.microsoft.com/en-us/library/cd0811yf.aspx 
18. .EXAMPLE 
19.     PSH [C:\foo]: .\Compare-Double.PS1
20.     Before 1st call: 
21.     42.42 
22.     69.69 
23.     104.4 
24.   
25.     After 1st call, before 2nd 
26.     42.42 
27.     69.69 
28.     104.4 
29.   
30.     After 2nd call 
31.     69.69 
32.     69.69 
33.     104.4 
34. #> 
35.  
36. ## 
37. # Start of Script 
38. ## 
39.  
40. # Create 3 double values 
41.  
42. [double] $a=42.42 
43. [double] $b=69.69 
44. [double] $c=104.4 
45.  
46. # Display values before 
47. "Before 1st call:";$a,$b,$c 
48. "" 
49.  
50. # Call CompareExchange and print results 
51. # This call compares $a with $c, so there are not equal 
52. $result = [system.Threading.Interlocked]::CompareExchange([ref]$a, $b, $c) 
53. "After 1st call, before 2nd" 
54. $a,$b,$c 
55. "" 
57. # Call CompareExchange and print results 
58. # This call compares $a with $A, so this call 
59. # returns $a updated to $b 
60. $result = [system.Threading.Interlocked]::CompareExchange([ref]$a, $b, $a) 
61. "After 2nd call" 
62. $a,$b,$c 

Technorati Tags: PowerShell,script,System.Threading.Interlocked,CompareExchange