Help using Get-ADgroup

Question

Hello.....How can I get this to except my "GroupName" in the second example?
Example 1. This Works
$Results = Get-ADgroup -LDAPFilter "(name=My_Group_Name)" | Select-Object -ExpandProperty "Name"
$Results
Example 2. This doesn't
$GroupName = "My_Group_Name"
$Results = Get-ADgroup -LDAPFilter "(name=$GroupName)" | Select-Object -ExpandProperty "Name"
$Results
Example 3. works but too slow
$Results = get-adgroup -Filter 'GroupCategory -eq "Security" -and GroupScope -eq "Global"' '
| Where-Object {$_.Name -eq "My_Group_Name"}
| Get-ADGroupMember | select name -ExpandProperty "Name"
The quickest search method in my environment is to use the -LDAPFilter  instead of  -Filter
Thank you

Answer 1

Hi Hecktor,
Example two works just fine for me. Does it throw any errors or is it just a null return?
Example three is of course extremely slow. First you retrieve all global security groups and only after you have them all do you start filtering out those you do not want. You really want to put the name property into the filter ...
Cheers,
Fred
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