Is it possible to use a csv or text file with AD groups in it, use a powershell script to reference the csv / text file and add them to the group membership of a computer? or remove them? Thanks for any help in advance.
That is definitely possible and not too difficult.
Example (not tested):
Import-Module -Name ActiveDirectory
$csvPath = 'C:\Scripts\Users.csv'
$groupName = 'TestGroup1'
$items = Import-CSV -Path $csvPath
foreach ($item in $items)
{
Add-ADGroupMember -Identity $groupName -Members $item.UserName
}
foreach ($item in $items)
{
Remove-ADGroupMember -Identity $groupName -Members $item.UserName -Confirm:$false
}