Find the largest files modified today

If you’re not using fancy file auditing software to track things, it may be challenging to find out who just filled up your drive with a bunch of data.  Here’s a PowerShell script to brute force way, crawling through your network shared drive to find the largest files that were modified today.  It can take a while to run if you have many folders and files to crawl through.  Now you can have a list of your top 100 largest files and who owns them.

# Largest X files created today
$limit = 100
$filesToday = Get-Childitem $searchPath * -Recurse -File -ErrorAction "SilentlyContinue" | 
 Where-Object {($_.LastWriteTime -gt (Get-Date).Date)} 
$largestFiles = $filesToday | Sort-Object -Property length -Descending | Select-Object Name, @{Name="SizeInMB";Expression={$_.Length / 1MB}},@{Name="Path";Expression={$}}, @{Name="Owner";Expression={(Get-Acl $_.FullName).Owner}} -First $limit
$largestFiles | Export-Csv (".\largestFilesToday_" + (Get-Date -Format "yyyy_MM_dd_hhmm") + ".csv")