How can I use the Get_ADgroup cmdlet to filter on specific groups?

I'm trying to extract the users from specific groups

Get-AdGroup -Filter {('Name -like "MyCo *Admin*"') -or (Name -like MyCo Helpdesk"')}

This works: Get-ADGroup -Filter 'Name -like "MyCo *Admin*"'

I  have an number of administrator groups and one with the name helpdesk, I'm trying to create a list of all the users in any  groups that have admin privledges.

I can run the command twice and export to csv and merge both lists, but would like to create a script that I can use regualrly and have one csv file when done.

Any suggestions would be appreciated

-Tom



Tom