Powershell Script - Adding Bulk Users in an AD Group

<#Created By Abhishek Bansal

Read Note 

Script Usage :: Adding multiple Users in an AD Group.

Pre requisites :: Copy all the code into a text file, save it with an extension ".PS1". On same location create a text file named "Inputusers.txt" which will be containing samaccount of all the users who will be added. Once saved, run script as Administrator.

Execution & Outputs :: During execution, it will prompt for AD group name. Need to provide the same. Once done, script will firt backup current membership of AD Group into Backup_membership.csv and final Output into Output.csv" onto same location. #>

$inputusers = Get-Content .\Inputusers.txt

$line = 0

$lines = $inputusers.count

$grp = Read-Host "Enter AD Group Name = "

Write-Host -ForegroundColor Yellow "`nAD Group Name Provided : $grp`n"

if((Get-ADGroup -Identity $grp).Samaccountname -eq $grp)

{

$choice = $(Write-Host -ForegroundColor Yellow "`nDo you want to proceed adding users mentioned in Inputusers.txt file to $grp. Press Y for Yes and N for No = " -NoNewline ; Read-Host)

Switch($choice)

{

Y {

 Write-Host -ForegroundColor Green "Backing up $grp Group membership before doing changes in Backup_membership.csv file.."

 Get-ADGroupMember -Identity $grp | Select Name,SamAccountName | Export-Csv .\Backup_membership.csv -NoTypeInformation

foreach($row in $inputusers)

{

    $line++

    $pct = $line/$lines * 100

    $row = $row.trim()

     Write-Progress -Activity "Adding Users ..." -PercentComplete $pct -Status "$line of $lines"

   try

    {

    Add-ADGroupMember -Identity $grp  -Members $row -Confirm:$false 

    $row | Select-Object -Property @{n="User ID";e={("$row")}},@{n="Status";e={("Added now.")}} | Export-Csv .\Output.csv -NoTypeInformation -Append

    }

    catch

    {

    $row  | Select-Object -Property @{n="User ID";e={($row)}},@{n="Status";e={($error.exception.Message)}} | Export-Csv .\Output.csv -NoTypeInformation -Append

    }

}

} #Closing Y condition

N {

Write-Host -ForegroundColor Green "You pressed N & hence nothing added in $grp AD Group."

} #Closing N condition

Default

{

Write-Host -ForegroundColor Red "Invalid Choice. Try again"

}

} #Closing switch

}