PowerShell script to move files with duplicate names

I have a list of PST files on a network share containing users home folders. The list of files is in CSV format, and contains the fields "User" (contains usernames) and "filename" (full path and file name). I need to do the following with these PST's:

1. Create a folder in another specified location for holding the PST's for that user. For example, \\<server>\PST\<username>. I already have this part working.
2. Move the PST files into the folders for the appropriate users. The list of PST files contains user names corresponding to the owner of the file.
3. I will eventually import the PST's into the users mailboxes using PowerShell with a separate script. I am able to do this part as well.

My problem is with step 2. I need to move all the PST's into the proper users folder, but some have duplicate file names (i.e. Archive.pst) in separate sub-folders in their home folders.  I need to copy all into Exchange.

How can I automatically rename duplicate files when I move them into the users new folder? The name needs to retain the original file name, although text can be appended to the name if needed. It must also keep .PST as the suffix.

Thanks in advance for any suggestions.

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Jason RybergConnect With a Mentor Technical Consultant IVCommented:

Sounds like the issue you're up against is breaking the filename out of the fullpath.  This script below should do that for you and copy it to the target location.

$CSVFile | % {

  $FullPath = $_.Filename

  #Need to pull just the filename from the full path.  This command splits the $FullPath string into an array based on the "\" character; it then grabs the last member of the array
  $FileName = $($FullPath.Split("\"))[-1]

  #Append the filename to the target path and test to see if the file already exists; if it does, add a unique ID
  $TargetFile = "\\<server>\PST\$($_.User)\$FileName"
  If (Test-Path $TargetFile) {
    $FileName = $FileName.Replace(".PST","-import.PST") #you can replace the second parameter of the replace method with whatever text you want to append instead of "-import"
    $TargetFile = "\\<server>\PST\$($_.User)\$FileName"

  Copy-Item $FullPath $TargetFile


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drothbartAuthor Commented:
Excellent, well-commented answer. Thanks!
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