Removes file duplicates based on content's hash

Dedupe-Files.ps1

$fork = "C:\Users\Alfred\Desktop\MyBooks" # Directory possibly containing duplicate files
$repo = "C:\Books" # Directory containing master files
$repoHashes = (Get-ChildItem $repo -Recurse -File | Get-FileHash).Hash
Get-ChildItem $fork -Recurse -File | 
    Where-Object { $repoHashes.Contains(($_ | Get-FileHash).Hash) } | 
    Remove-Item