Create-TempFile.ps1

1. <# 
2. .SYNOPSIS 
3.     This script creates then copies a file using 
4.     System.IO.Fileinfo.CopyTo() 
5. .DESCRIPTION 
6.     This script first creates a temporary file, then 
7.     copies it to another file then deletes the  
8.     second file. 
9. .NOTES 
10.     File Name : Create-TempFile.ps1 
11.     Author : Thomas Lee - tfl@psp.co.uk 
12.     Requires : PowerShell V2 
13. .LINK 
14.     This script posted to: 
15.     http://pshscripts.blogspot.com/2009/10/create-tempfile.html
16.     MSDN Sample posted at: 
17.     http://msdn.microsoft.com/en-us/library/system.io.fileinfo.aspx 
18. .EXAMPLE 
19.     PSH [C:\foo]: .\Create-TempFile.PS1' 
20.     File C:\Users\tfl\AppData\Local\Temp\tmpF2C1.tmp exists 
21.     Original file: 
22.     ----------- 
23.     Hello 
24.     And 
25.     Welcome 
26.     ----------- 
27.     C:\Users\tfl\AppData\Local\Temp\tmpF2C1.tmp was copied to C:\Users\tfl\AppData\Local\Temp\tmpF2E1.tmp 
28.     C:\Users\tfl\AppData\Local\Temp\tmpF2E1.tmp was successfully deleted.    
29. #> 
30.   
31. ## 
32. # start of script 
33. ## 
34.    
35. # Create temp file and FileInfo object  
36. $Path = [System.Io.Path]::GetTempFileName() 
37. $fi1 = New-Object System.Io.FileInfo $Path 
38.  
39. # See if file exists 
40. if ((Ls $fi1)) { 
41.     "File {0} exists" -f $fi1  
42.     # Create a file to write to and write to it 
43.     $sw = $fi1.CreateText() 
44.     $result=$sw.WriteLine("Hello") 
45.     $result=$sw.WriteLine("And") 
46.     $result=$sw.WriteLine("Welcome") 
47.     $sw.Close() 
48. } 
49.   
50. # Open the file to read from. 
51. $sr = $fi1.OpenText() 
52. $s = ""; 
53. "Original file:";"-----------" 
54. while (($s = $sr.ReadLine()) -ne $null) { 
55.     $s 
56. } 
57. "-----------"
58. try { 
59.     $path2 = [System.IO.Path]::GetTempFileName() 
60.     $fi2 = New-Object system.IO.FileInfo $path2 
61.  
62.     # Ensure that the target does not exist. 
63.     $fi2.Delete() 
64.  
65.     # Copy the file 
66.     $result = $fi1.CopyTo($path2) 
67.  
68.     "{0} was copied to {1}" -f $path, $path2 
69.  
70.     # Delete the newly created file. 
71.     $fi2.Delete() 
72.     "{0} was successfully deleted." -f $path2 
73. }  
74. catch { 
75.     "The process failed:";$Error[0] 
76. } 
77. # End of Script 
78. "-----------"