feat: Add script to backup group members via csv file

powershell/backup-groupmembers.ps1

@@ -6,10 +6,13 @@ $groups = @("", "")
 
 $csv_file = "backup_$(Get-Date -Format 'yyyy-MM-dd_HH-mm-ss').csv"
 
-try {
+$csv_export_table = @()
-    foreach ($group in $groups) {
+
+foreach ($group in $groups) {
+    try {
         $ad_group = Get-ADGroup -Filter 'Name -eq $group -and GroupScope -eq "DomainLocal" -and GroupCategory -eq "Security"' -Server $server -Properties Member -ErrorAction Stop
-        $csv_export_table = @()
+        
+        if ($ad_group.Member) {
             $ad_group.Member | ForEach-Object {
                 try {
                     $ad_user = Get-ADUser -Identity $_ -Properties * -Server $server -ErrorAction Stop
@@ -19,13 +22,20 @@ try {
                         MemberDistinguishedName = $ad_user.DistinguishedName
                     }
                 } catch {
-                Write-Error "User $group not found and skipped..."
+                    Write-Warning "User $_ not found in group $group - skipping..."
                 }
             }
+        } else {
+            Write-Warning "Group $group has no members"
+        }
+    } catch {
+        Write-Warning "Group $group not found - skipping..."
     }
-} catch {
-    Write-Error "Group $group not found"
-    exit 1
 }
 
-$csv_export_table | Export-Csv -Path $csv_file -NoTypeInformation
+if ($csv_export_table.Count -gt 0) {
+    $csv_export_table | Export-Csv -Path $csv_file -NoTypeInformation
+    Write-Host "Backup completed successfully. Exported $($csv_export_table.Count) members to $csv_file"
+} else {
+    Write-Warning "No members found to export"
+}