How to compare 2 libraries?

Question

I have a situation with employee records. I have few libraries with active employees records. and I have 2 libraries that contain terminated employees records. The idea is when someone is terminated then move her/his records from active library to terminated library.

The HR users copied records from Active to Terminated libraries instead of MOVING the items. Now I need to find out employees in both libraries. How do I do this?

Answer 1

You can use

1. PowerShell script to iterate the library items and compare
2. You can export both libraries into Excel, then merge the two files, the sort it to find duplicates.

Answer 2

You can try the below powershell:

$mSite = Get-SPweb "http://sharepointed.com/site/taco"
$aList = $mSite.lists["A"]
$bList = $mSite.lists["B"]

$arrA = @()
$arrB = @()

foreach($iA in $aList.Items)
{
 $arrA += $iA["Title"]
}

foreach($iB in $bList.Items)
{
 $arrB += $iB["Title"]
}

$c = Compare-Object -ReferenceObject $arrA -DifferenceObject $arrB -PassThru
Write-Host $c

Source: http://www.sharepointed.com/2012/10/02/use-powershell-to-compare-two-sharepoint-lists/