Powershell script to delete all versions of files in a sharepoint site from all libraries

Greg_from_Pond 

Yes you are correct, from what I can see His script is generate from ChatGPT/Copilot and he hasn't looked through it, which can cause problems as GPT makes things up as it goes sometimes....Which in this case would have been pretty dangerous...

This script should do it for you, change the 5 to how many you want to save:

# This script deletes all but the 5 latest versions of each document in a SharePoint Online library

# Connect to SharePoint Online site
$siteUrl = "https://contoso.sharepoint.com/sites/MySite"
Connect-PnPOnline -Url $siteUrl -Interactive

# Get the library name
$libraryName = "Documents"

# Get all the items in the library
$items = Get-PnPListItem -List $libraryName

# Loop through each item
foreach ($item in $items) {
    # Get the file object
    $file = $item.File

    # Get the versions of the file
    $versions = $file.Versions

    # Sort the versions by creation date in descending order
    $sortedVersions = $versions | Sort-Object -Property Created -Descending

    # Skip the first 5 versions and delete the rest
    $sortedVersions | Select-Object -Skip 5 | ForEach-Object {
        $_.DeleteObject()
    }
}