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Powershell Exchange 2013 Batch question

Posted on 2014-08-24
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Last Modified: 2014-08-26
I work in a very large enterprise environment and we are moving users to Exchange 2013. The one issue that we need to automate is placing the primarysmtpaddress in a text file with the header emailaddress. What we have done is taken a large mass of users maybe 1,000 at a time and save them to different csv files with the header emailaddress. In the CSV file/excel we sort by name and create a column called batch. In there we place numbers 1-30 and keep starting over from 1-30 until we get to the 1,000th person. We then sort on that field and everything with 1 goes into a file with emailaddress as the header and populate this with just the primarysmtpaddress.We do this for everything that has a number 2, place this in a csv file with the header emailaddress with the primarysmtpaddress. We keep going on and on and on until we reach 30th which has the 1000 user. As you can see this is painful and long.  How can you get powershell to look inside of a csv file, grab all the number 1's place them into a separate csv file with the header emailaddress and move on until it gets to 30.  If someone has a better method please do share
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Question by:techdrive
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Subsun earned 2000 total points
ID: 40282262
If i understand your requirement, then the following code should do it.. It will take the input file with columns headers "emailaddress" & "batch", then split the csv file like, all batch one will go to batch1.txt, batch two should go to batch2.txt etc..
Import-Csv C:\input.csv | Group Batch | %{
$File = "C:\batchfiles\Batch$($_.Name).txt"
 $_.Group | Select emailaddress | Export-Csv $File -nti
}

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Test and let me know if you need any modifications..
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by:techdrive
ID: 40286941
Perfect thanks
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