SET-Extension.ps1

1. <#
2. .SYNOPSIS
3. Changes file extension
4. .DESCRIPTION
5. This script uses the ChangeExtension method to change a file extension
6. .NOTES
7. File Name : Change-Extension.ps1
8. Author : Thomas Lee - tfl@psp.co.uk
9. Requires : PowerShell V2 CTP3
10. .LINK
11. http://pshscripts.blogspot.com/2009/03/change-extensionps1.html
12. .EXAMPLE
13. PSH [C:\foo]: .\Change-Extension.ps1
14. Set Extension(C:\mydir\myfile.com.extension,'.old') returns 'C:\mydir\myfile.com.old'
15. Set Extension(C:\mydir\myfile.com.extension, '') returns 'C:\mydir\myfile.com.'
16. Set Extension(C:\mydir\, '.old') returns 'C:\mydir\.old'
17. #>
19. ##
20. # Start of Script
21. ##
23. # Setup file names
24. $goodFileName = "C:\mydir\myfile.com.extension"
25. $badFileName = "C:\mydir\"
27. # Change file name extensions
28. $result = [System.IO.Path]::ChangeExtension($goodFileName, ".old")
29. Set Extension({0},'.old') returns '{1}'" -f $goodFileName, $result
31. $result = [System.IO.Path]::ChangeExtension($goodFileName, "")
32. Set Extension({0}, '') returns '{1}'" -f $goodFileName, $result
34. $result = [System.IO.Path]::ChangeExtension($badFileName, ".old")
35. Set Extension({0}, '.old') returns '{1}'" -f $badFileName, $result
36. # End of Script

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