get-SPOPermissions.ps1

#Admin Center & Site collection URL
$AdminCenterURL = Read-Host "Please enter the Admin URL of your sharepoint instance"
$CSVPath = "C:\Temp\GroupsReport.csv"
 
#Connect to SharePoint Online
Connect-SPOService -url $AdminCenterURL
 
$GroupsData = @()
 
#Get all Site collections
Get-SPOSite -Limit ALL | ForEach-Object {
    Write-Host -f Yellow "Processing Site Collection:"$_.URL
  
    #get sharepoint online groups powershell
    $SiteGroups = Get-SPOSiteGroup -Site $_.URL
 
    Write-host "Total Number of Groups Found:"$SiteGroups.Count
 
    ForEach($Group in $SiteGroups)
    {
        $GroupsData += New-Object PSObject -Property @{
            'Site URL' = $_.URL
            'Group Name' = $Group.Title
            'Permissions' = $Group.Roles -join ","
            'Users' =  $Group.Users -join ","
        }
    }
}
#Export the data to CSV
$GroupsData | Export-Csv $CSVPath -NoTypeInformation
 
Write-host -f Green "Groups Report Generated Successfully!"