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

Hi rohankapz,

you can try this script to delete all versions of all files and folders in a SharePoint site but keep the latest 10 versions of each file:

# Import the SharePoint Online Client Library
Import-Module Microsoft.SharePoint.Online.CSOM

# Connect to the SharePoint Online site
$siteUrl = "https://contoso.sharepoint.com/sites/my-site"
$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($siteUrl)

# Get all the web libraries in the site
$web = $ctx.Web
$libraries = $web.Lists

# Iterate through each library and delete all versions of all files and folders
foreach ($library in $libraries) {
    # Get all the files in the library
    $files = $library.Files

    # Iterate through each file and delete all versions
    foreach ($file in $files) {
        # Get the file's version history
        $versionHistory = $file.VersionHistory

        # Keep the latest 10 versions and delete the rest
        $versionsToDelete = $versionHistory.Where({ $_.VersionLabel -eq "1.0" -or $_.VersionLabel -eq "2.0" -or $_.VersionLabel -eq "3.0" -or $_.VersionLabel -eq "4.0" -or $_.VersionLabel -eq "5.0" -or $_.VersionLabel -eq "6.0" -or $_.VersionLabel -eq "7.0" -or $_.VersionLabel -eq "8.0" -or $_.VersionLabel -eq "9.0" })
        foreach ($versionToDelete in $versionsToDelete) {
            $versionToDelete.Delete()
        }
    }
}

# Execute the script
$ctx.ExecuteQuery()​

To use this script, simply change the $siteUrl variable to the URL of your SharePoint Online site. Then, run the script in PowerShell.

This script will delete all versions of all files and folders in the site, except for the latest 10 versions of each file. Be sure to back up your data before running this script.