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Powershell variable treated as NULL in New-GlobalAddressList cmdlet

Posted on 2014-04-15
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Last Modified: 2014-04-17
I can't wrap my head around what's going on here.
This works from the powershell commandline:
New-GlobalAddressList -name ThisGuy_GAL -recipientFilter {CustomAttribute10 -eq ThisGuy}

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Get-globalAddressList Thisguy_GAL returns the expected recipient filter that looks like this:
CustomAttribute10 -eq 'ThisGuy'


However, if I do the exact same thing in a script, I get a malformed recipient filter
$uniqueID = "ThatGuy"
New-GlobalAddressList -Name "$($uniqueID)_GAL" -RecipientFilter {CustomAttribute10 -eq $uniqueID}

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The above executes with no errors, BUT - Get-GlobalAddressList ThatGuy_GAL returns a recipient filter that looks like this:

-not(CustomAttribute10 -ne $null)

What?
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Question by:Jon Brelie
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Author Comment

by:Jon Brelie
ID: 40002653
If I'm reading this right, then my "$uniqueID" is getting read as a NULL value, thus creating the " Not CustomAttribute10 is not equal to NULL" recipient filter.

Okay, that makes sense.  But why is that value being interpreted as NULL in the recipient filter and not in the name?  I've tried numerous forms of syntax... can anyone provide me with the correct version?
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Accepted Solution

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Justin Yeung earned 2000 total points
ID: 40006587
if you do a $test = {CustomAttribute10 -eq $uniqueID}

The variable $test only return as the same
 {CustomAttribute10 -eq $uniqueID}

you can do a variable for the filter like this

$filter = "CustomAttribute10 -eq `"$uniqueID`""

New-GlobalAddressList -Name "$($uniqueID)_GAL" -RecipientFilter $Filter
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LVL 16

Author Comment

by:Jon Brelie
ID: 40007020
Magnificent!  You have no idea how many combinations of quotes and backticks I've tried to get this working.  Thank you!
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LVL 16

Author Closing Comment

by:Jon Brelie
ID: 40007022
works perfectly!
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LVL 14

Expert Comment

by:Justin Yeung
ID: 40007023
I know I have tried a few times as well.
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