Export Computer Accounts from Certain OUs, using Powershell ?

Does anyone have a script available that can extract computer accounts from OUs and not from others ? What I would like to do is to run a PowerShell script to extract computer accounts, which I have done.  This pulled out all computer accounts, but what I would like to do, is to extract computer accounts from all OUs apart from the Computer \ Test \ Dev OUs.
CaussyRAsked:
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Chris DentPowerShell DeveloperCommented:
If the number of computers you're excluding is relatively small the simplest way would be to do something like this:
Get-ADComputer (Filters) |
  Where-Object {
    $_.DistinguishedName -notmatch 'CN=Computers'  -and 
    $_.DistinguishedName -notmatch 'OU=Test' -and
    $_.DistinguishedName -notmatch 'OU=Dev'
  }

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Exactly how this fits in depends on how you're executing the query in the first place. However, the filtering principals will still apply.

Filtering after the event like this is not the most efficient method, so if you have a very large number of computers a deeper look is required.

Chris
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CaussyRAuthor Commented:
Thanks Chris, but if there are sub-OUs how do I stop the search running through each sub OU ?

Test > Test1 > Test2
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Chris DentPowerShell DeveloperCommented:
Given that we're qualifying the distinguishedName you can do this based on all or part of the path.

For example, if you wanted to exclude a root OU called Test you could do this in the Where-Object statement:
$_.DistinguishedName -match 'OU=Test,DC=yourdomain,DC=com$'

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It's a regular expression matching anything at the end of the string so we look for yourdomain.com/Test in effect.

You can look for nested OUs in much the same way:
$_.DistinguishedName -match 'OU=Test2,OU=Test1,OU=Test'

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Is that what you mean?

Chris
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