Using the result of Get-ADOrganizationalUnit into an array.

Question

Hello all!
I'm hoping you can help me with the following challange. What I want to accomplish:
I'm building a PowerShell script that will parse all the servernames from multiple OU's through the RDCman Set-Rdg script build by timdun @
http://blogs.msdn.com/b/timid/archive/2013/03/25/rdcman-config-files-rdg.aspx. I'm doing this on a OU basis because this will give an better overview (treeview) in RDCman.
So far I can accomplish this by naming each OU individually (see: $ouA, $ouB, etc). See the following script:
$domain = "dc=domain,dc=subdomain,dc=address,dc=com"
$ou1 = "FABRIC"
$ou2 = "Servers"
$outputfile = "c:\temp\hostnames.txt"
Import-Module ActiveDirectory
$ints = @($ouA, $ouB, $ouC, $ouD, $ouE, $ouF, $ouG, $ouH, $ouI, $ouJ, $ouK, $ouL, $ouM, $ouN, $ouO, $ouP, $ouQ, $ouR, $ouS)
foreach ($i in $ints){
$servername = Get-ADComputer -SearchBase "OU=$i,OU=$ou2,OU=$ou1,$domain" -Filter '*' | Select -Expand DNShostname
$servername > $outputfile
Get-content $outputfile | c:\temp\Set-Rdg.ps1 -Pattern '(..)' -Taxonomy $domain, $ou1, $i -nobackup
To the question: I'd like to automate this process. I used the command Get-ADOrganizationalUnit command to give me a list of sub OU's.
$oucollection = Get-ADOrganizationalUnit -LDAPFilter '(name=*)' -SearchBase "OU=$ou2,OU=$ou1,$domain" -SearchScope OneLevel | FT Name
The result is als follows:
Name
OU1
OU2
OU3
OU4
etc
My question is: how to rebuild the result from above so that I can use this in $ints (see script) so that i don't have to name each OU individually...
Many thanks in advance!

Answer 1

Hi j-tt,
this should certainly work. However ... if instead of Name you select the distinguishedName, you could use the whole dn as searchbase, instead of the construct you are currently using. Here's an Example after some slight rewrite:
# Import the Active Directory Modules
Import-Module ActiveDirectory
# Grab all sub-OUs of the Search-Base, then retrieve their DistinguishedNames and Names
Get-ADOrganizationalUnit -Filter "*" -SearchBase "OU=Servers,OU=FABRIC,dc=domain,dc=subdomain,dc=address,dc=com" -SearchScope OneLeve | Select Name, DistinguishedName | ForEach{
# Save OU into Variable
$OU = $_.Name
# For each OU found, get all contained computers, extract their DNSHostnames and pass those into the script
Get-ADComputer -SearchBase $_.DistinguishedName -Filter "*" | Select -ExpandProperty DNSHostname | c:\temp\Set-Rdg.ps1 -Pattern '(..)' -Taxonomy "dc=domain,dc=subdomain,dc=address,dc=com", "FABRIC", $OU -nobackup
I'll admit I might have gone a bit wild with the pipelines here :)
Cheers,
Fred
Edit: Fixed my shortened Version to include the Taxonomy parameters
There's no place like 127.0.0.1