How to dynamically move computer accounts from Computers OU - powershell

Question

Its pretty "simple" what i want to achieve. I have people creating Computer Objects on my AD and leaving there without moving them to the appropiate OU.
I would like a powershell script to read the list of computers from the Computers OU, and depending the first 5 or 6 letters from the Computer name, move it to the appropiate OU, reading the list of destination OUs from a CSV or txt or whatever file type.
I need to move more than 100 computers and I would like to scan them, and move them to their corresponding OU.
I've thought to use a variable for the computer accounts, then a foreach and a switch or something similar, and 1-by-1 start moving the accounts. But I'm stuck.
Thank you!!!!

Answer 1

Turning my comment into an answer. You could create a lookup Hashtable for this:
# create a lookup Hashtable for all OU's in your organisation
# You can limit this using parameters like '-SearchScope' and '-SearchBase' depending on the structure in your AD environment
$allOUs = #{}
Get-ADOrganizationalUnit -Filter 'Name -like "*"' | ForEach-Object {
$allOUs[$_.Name] = $_.DistinguishedName
}
# next, get all computers in the default Computers OU
$result = Get-ADComputer -Filter * -SearchBase "CN=Computers,DC=Contoso,DC=com" | ForEach-Object {
$computerName = $_.Name
$found = $false
if ($computerName.Length -ge 6) {
$targetOU = $computerName.Substring(0,6)
$found = $allOUs.ContainsKey($targetOU)
}
if (!$found -and $computerName.Length -ge 5) {
$targetOU = $computerName.Substring(0,5)
$found = $allOUs.ContainsKey($targetOU)
}
if ($found) {
try {
$_ | Move-ADObject -TargetPath $allOUs[$targetOU] -ErrorAction Stop -WhatIf
# add success to the $result
[PsCustomObject]#{
'Computer' = $computerName
'TargetOU' = $targetOU
'Result' = 'Moved'
}
}
catch {
# add exception to the $result
[PsCustomObject]#{
'Computer' = $computerName
'TargetOU' = $targetOU
'Result' = 'Not moved. {0}' -f $_.Exception.Message
}
}
}
else {
# add failure to the $result
[PsCustomObject]#{
'Computer' = $computerName
'TargetOU' = ''
'Result' = 'Not moved. Computername does not begin with a valid OU name'
}
}
}
# output on screen
$result
# output to file
$result | Export-Csv -Path 'ComputersMoved.CSV' -NoTypeInformation
Remove the -WhatIf switch if you are satisfied with the results shown in the console.

Answer 2

This should be dynamic enough. You can replace the Map object with a CSV.
$Map = [PSCustomObject]#{
AABBCC = "OU=ABC,DC=Contoso,DC=com";
CCBBAA = "OU=CBA,DC=Contoso,DC=com"
}
$Prefixlist = ($Map.PSObject.Members | Where-Object { $_.MemberType -eq "NoteProperty" }).Name
$Report = #()
$MissingPrefix = #()
Get-ADComputer -filter * -searchbase "CN=Computers,DC=Contoso,DC=com" -Properties Name | ForEach-Object {
$obj = $_
$Prefix = ($obj.Name).Substring(0, 6)
if ($Prefixlist -contains $Prefixlist) {
try {
$obj | Move-AdObject -Targetpath $Map.$Prefix -erroraction stop
$Report += [PSCustomObject]#{
Name = $Obj.Name
Move = $true
}
}
catch {
$_.Exception.ErrorRecord
$Report += [PSCustomObject]#{
Name = $Obj.Name
Move = $false
}
}
}
else {
$MissingPrefix += $Prefixlist
$Report += [PSCustomObject]#{
Name = $Obj.Name
Move = $false
}
}
}
"Result"
$Report | Format-Table -AutoSize
"Not found prefix list"
$MissingPrefix
Option 2 to make the path based on the prefix
$Report = #()
Get-ADComputer -filter * -searchbase "CN=Computers,DC=Contoso,DC=com" -Properties Name | ForEach-Object {
$obj = $_
$Prefix = ($obj.Name).Substring(0, 6)
try {
$obj | Move-AdObject -Targetpath "OU=Computers,OU=$Prefix,DC=Contoso,DC=com" -erroraction stop
$Report += [PSCustomObject]#{
Name = $Obj.Name
Move = $true
}
}
catch {
$_.Exception.ErrorRecord
$Report += [PSCustomObject]#{
Name = $Obj.Name
Move = $false
}
}
}
"Result"
$Report | Format-Table -AutoSize