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How to script the addition and removal of Distribution Group Members

Posted on 2008-06-25
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Last Modified: 2008-07-18
We're running Exchange 2007 SP1 on a Windows 2003 SP2 server.  We have 3 Distribution Groups that are updated on a weekly basis.  Each Distribution Group only has one member in it.  The Distribution Groups are named: 1st on call, 2nd on call, 3rd on call.  Every Friday, the member that was in the 3rd on call group, moves to 2nd on call.  The member from 2nd on Call, moves to 1st on call.  The member of 1st on call gets removed from the rotation.  

I'm looking for a way to somewhat automate the task of updating these distribution groups.  I've been looking around and found a Powershell script that will import members from a csv file.  But I haven't found a way to remove the member from one group and place them into another.  Below is the sample code I found on this site (I'd credit the author but couldn't find the post again):
import-csv dlmember.csv | foreach {add-distributiongroupmember -identity "dist group name" -member $_.memberAlias}

Any help is greatly appreciated.  Also, this script doesn't have to pull from a csv file if not needed, this is just what I have found so far.  Please let me know if there's need for further clarification

Thanks in advance.
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Question by:dmorrisroe
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by:BSonPosh
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I think this will do it for you (if my logic isnt confused :) )
# Collect Group Members and store in the New Group Collection

$callGroup1 = Get-DistributionGroupMember "3rd on call"

$callGroup2 = Get-DistributionGroupMember "1st on call"

$callGroup3 = Get-DistributionGroupMember "2nd on call"
 

# Add users for new Collection to Groups

$callgroup1 | %{$_.distinguishedname} | Add-DistributionGroupMember "1st on call"

$callgroup2 | %{$_.distinguishedname} | Add-DistributionGroupMember "2nd on call"

$callgroup3 | %{$_.distinguishedname} | Add-DistributionGroupMember "3rd on call"

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by:BSonPosh
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btw... if the group membership is static.

Perhaps a better way is renaming the groups... This would save a potentially significant amount of AD replication.
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by:dmorrisroe
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Thanks, I'll give the script a try in about a half an hour.  Unfortunately, membership isn't static.  It's a rotation of about 5 people.
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by:BSonPosh
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How did this work out for you?
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by:Robert Davis
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I am wondering the same thing....
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by:dmorrisroe
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sorry for the delay.  I ran the script but none of the distribution list had changed.  
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BSonPosh earned 500 total points
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any error? It is unlikely that it failed without an error of some sort.

Run this script

# Collect Group Members and store in the New Group Collection

$callGroup1 = Get-DistributionGroupMember "3rd on call"

$callGroup2 = Get-DistributionGroupMember "1st on call"

$callGroup3 = Get-DistributionGroupMember "2nd on call"

 

# Add users for new Collection to Groups

$callgroup1 | %{$_.distinguishedname} | Add-DistributionGroupMember "1st on call"

$callgroup2 | %{$_.distinguishedname} | Add-DistributionGroupMember "2nd on call"

$callgroup3 | %{$_.distinguishedname} | Add-DistributionGroupMember "3rd on call"
 

if(!$?){$error[0]}

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by:dmorrisroe
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Sorry, it's was on my part.  The error read: Add-DistributionGroupMember : The group "1st on call" is not a mail-enabled u
niversal group.  I made it universal and it started to switch members.  However, it moved them like this:
1st to 2nd
2nd to 3rd
3rd to 1st.

I think I should be able to flip that around.
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by:BSonPosh
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k
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