AutoOUADCreator/AutoOUADCreator.ps1

# Copyright 2024 Rayyan Hodges, TAFE NSW, AlphaDelta
# Contact: rayyan.hodges@studytafensw.edu.au
# Program Name: AutoOUADCreator
# Purpose of script: Create a batch set of OU' using a CSV file within an existing Active Directory Forest.
# Extra Notes: Modify line 37 with appropriate domain info. (AlphaDelta.com is used in this scenario)

#Import the Active Directory module to allow modifcations to the forest.
import-module ActiveDirectory

#Get user to specify path of the CSV file containing OU names to be added into the Active Directory.
$fpath = Read-Host -Prompt "Please enter the path to your CSV file containing OU info to be added within the Active Directory Domain Forest"

# Check if the CSV file exists
if (Test-Path $fpath) {
    # Display path to file given by end-user
    echo $fpath

# Display path to file given by end-user
echo $fpath

#Import OU info from CSV file.
$fous = Import-Csv $fpath

#Create OU's within the Active Directory forest by looping throughout each row within the CSV file.
foreach ($row in $fous) {
        # Get the name of the OU from the CSV
        $ouName = $row.Name

        # Get all existing OUs in the specified path
    $existingOUs = Get-ADOrganizationalUnit -Filter * -SearchBase "DC=alphadelta,DC=com" | Select-Object -ExpandProperty Name

        # Check if the OU already exists
    if (-not (Get-ADOrganizationalUnit -LDAPFilter "(Name=$ouName)")) {
            # Create the OU
            New-ADOrganizationalUnit -Name $ouName -Path "DC=alphadelta,DC=com" -ErrorAction SilentlyContinue
            Write-Host "OU '$ouName' created successfully."
            # If OU name already exists, simply display a message stating it exists and skip to next entry.
        } else {
            Write-Host "OU '$ouName' already exists, proceeding to next entry."
        }
    }
} else {
 Write-Host "The specified CSV file does not exist."
}