Daily Powershell Challenge - 3/12/16

# https://www.reddit.com/r/PowerShell/comments/4a64bv/daily_powershell_challenge_31216/

function Get-DuplicateDownloads ($comp = $env:COMPUTERNAME) {
    dir \\$comp\c$\users -Directory | ? {test-path "$($_.FullName)\downloads"} | select -exp basename | % {
        dir \\$comp\c$\users\$_\downloads\* -file | group {$_.basename -replace ' \([0-9]+\)$'} | ? count -gt 1 | % {
            $_.group | group {(Get-FileHash $_.fullname).hash} | ? count -gt 1 | % {
                $_.group | sort name -Descending | select -Skip 1 -exp fullname
            }
        }
    }
}

Get-DuplicateDownloads -comp 'workstation2' | Remove-Item -WhatIf