PowerShell Exchange 2007 Question To count up the total number of email addresses (view/hidden) per GAL

Question

Hello All:
I am very new to Power Shell and need some help:
I have 224 GAL's on our Exchange System (Ex 2007) where, I need to count the total number of email addresses/display names assigned to each GAL.  I am not sure how to set up a for-next loop in PowerShell.  I am not sure how to set a  input
file/variable, with the names of each GAL.  (GAL is Global Address List)
I think it's $GALLIST = 'NameofGal1, NameofGal2, etc thru to NameofGaln' where n is the last GAL in the list.
So I need to now a command which would get all the gal names (Get-AddressList(?) for all the GAL's in the Exchange System and then pipe them into a function to count the number of email addresses.
In making a start with the following code and got stuck:
Get-Mailbox | Where {$_.GlobalAddressList -eq “GAL” -and $_.} | Select-Object Displayname, EmailAddresses, count
Missing or invalid property reference or expression.
At line:1 char:71
+ Get-Mailbox | Where {$_.GlobalAddressList -eq "GAL" -and $_.} <<<<  | Select-Object Displayname, EmailAddresses, count
I think I know how to pipe the results to a csv file - with - Export-Csv  -path c:\filename.csv - NoTypeInformation.
Please can someone advise.  Please help.
Thanks in advance
PS - is there a way to access, read and display variable name and value which stores the number of email addresses/per GAL in exchange 2007 database so you don't have carry out a count exercise.  Because this metadata will be in the Exchange DB? 
Would this be easier to get?
Started building conditional statement:
Get-Mailbox | Where {$_.GlobalAddressList -eq "GAL" AND {{HiddenFromAddressListsEnabled -eq $True} OR {HiddenFromAddressListsEnabled -eq $False}} |
If {{HiddenFromAddressListsEnabled -eq $True} | Select-Object Displayname, EmailAddresses, count ELSE {HiddenFromAddressListsEnabled -eq $False}} | Select-Object Displayname, EmailAddresses, count
ENDIF
Export-Csv -path c:\test.csv -NoTypeInformation
Will this work?  Checking to see how to do a for-next loop.
$GAL = Get-GlobalAddressList
foreach($GAL IN $GAL)
Get-Mailbox | Where {$_.GlobalAddressList -eq $GAL AND {{HiddenFromAddressListsEnabled -eq $True} OR {HiddenFromAddressListsEnabled -eq $False}} |
If {{HiddenFromAddressListsEnabled -eq $True} | Select-Object Displayname, EmailAddresses, count AS "Count of Hidden Addresses" ELSE {HiddenFromAddressListsEnabled -eq $False}} | Select-Object Displayname, EmailAddresses, count AS "Count of 
Visible Addresses" |
Export-Csv -path c:\test.csv -NoTypeInformation |
not sure if this works and looks spaghetti -like!

Answer 1

Hi Everton,
In addition, If you want to export GlobalAddressList, please refer to the script below:
$filter = (Get-GlobalAddressList 'Default Global Address List').RecipientFilter
#filter HiddenFromAddressListsEnabled is ture
Get-Recipient -RecipientPreviewFilter $filter | Where-Object {$_.HiddenFromAddressListsEnabled -eq $ture} | Select-Object Name,PrimarySmtpAddress
#filter HiddenFromAddressListsEnabled is false
Get-Recipient -RecipientPreviewFilter $filter | Where-Object {$_.HiddenFromAddressListsEnabled -eq $false} | Select-Object Name,PrimarySmtpAddress
Refer to:
How to Export the Exchange 2010 Default Global Address List (GAL)
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]