Checks whether user is in AD group(s)

in-group.ps

Import-Module ActiveDirectory  #[Install Remote Server Administration Tools](https://stackoverflow.com/questions/19182497)

$groups = @(
	"Administrators", 
	"XX-ProductOwners", 
	"XX-Developers"
	)
$members = @{}

Function CheckGroups ($user = "Someuser") {
	foreach ($group in $groups) {
		if (!($members.ContainsKey($group))){
			$members.Add($group, (Get-ADGroupMember -Identity $group -Recursive | Select -ExpandProperty SamAccountName) )
		}
		if ($members.Get_Item($group) -contains $user.ToLower()) {
			Write-Host "$user is in $group"
		} else {
			Write-Host "$user not in $group"
		}
	}
	Write-Host ""
}

Write-Host "usage: CheckGroups -user flastname"