SharePoint PowerShell script to list Files and folders with Unique Permissions

Import-Module SharePointPnPPowerShellOnline

# Variables
$SiteUrl = "https://mstalk.sharepoint.com/sites/YourSite" 
$OutputFile = "D:\Scriptsoutput\UniquePermissionsReport.csv" 

# Connect to SharePoint Online
Connect-PnPOnline -Url $SiteUrl 

# Get all document libraries in the site
$Libraries = Get-PnPList | Where-Object { $_.BaseTemplate -eq 101 } # BaseTemplate 101 is for document libraries

$Report = @()

# Loop through each document library
foreach ($Library in $Libraries) {
    Write-Host "Processing library: $($Library.Title)" -ForegroundColor Cyan

    # Get all items in the library
    $Items = Get-PnPListItem -List $Library.Title -PageSize 1000 -Fields FileRef, FileLeafRef, HasUniqueRoleAssignments

    foreach ($Item in $Items) {
        if ($Item["HasUniqueRoleAssignments"] -eq $true) {
            $Entry = [PSCustomObject]@{
                LibraryName = $Library.Title
                ItemName    = $Item["FileLeafRef"]
                ItemUrl     = $Item["FileRef"]
                HasUniquePermissions = $Item["HasUniqueRoleAssignments"]
            }
            $Report += $Entry
        }
    }
}

# Display the report in a grid view
$Report | Out-GridView -Title "Unique Permissions Report"

# Export the report to a CSV file
#$Report | Export-Csv -Path $OutputFile -NoTypeInformation -Encoding UTF8

Write-Host "Unique permissions report generated successfully"