Avatar of Mark Lewis
Mark Lewis

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Help with copying a couple of existing AD fields to different fields for the same user with Powershell

I have been using a program for auto signatures locally that pulled information from the Description field and the PO Box field in my on premise AD and it worked great.

Now that we are going cloud based and the auto sig software pulls from Azure, some of my data is encapsulated in [" "] when it goes into the signature. I have found that storing the data in extensionAttribute 1 and extensionAttribute 2 works fine for Description and PO Box respectively but I have no idea how to copy the existing data from one to the other and I have hundreds of users. I have found some scripts on Google but I want to make sure I dont screw up the data in my AD. 
PowershellActive Directory

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Avatar of 🔐 Peter GEELEN
🔐 Peter GEELEN
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Don't you have a test environment setup?
Else better clone a DC in an isolated test VM and test the scripts.

BTW, you can run powershell with a whatif statement and test the script
Avatar of Mark Lewis
Mark Lewis


With 300 users on a hosted environment that charges me to set up new VM's, no I do not have a test environment and cant just spin up a VM. Thanks for the link although if I was competent at PS, I wouldnt be asking for help. Thanks
Variation on the sample script in the Set-ADuser page, to set a target attribute with a source attribute value

$User = Get-ADUser -Identity JohnDoe -Properties SourceAttribue
$User.targetAttribute= $User.SourceAttribute
Set-ADUser -Instance $User

And you can easily list the target users in a textfile or CSV file, load the file, and run a loop through the user set
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