SharePoint: Bulk Folder Creation

Create-SPFoldersBulk.ps1

function Create-SPFoldersBulk
{
    <#
        .Synopsis
            This function will create a folders and subfolders based on the information contained in the imported CSV file
        .Description
            This function will create a folders and a single level of subfolders based on the information contained with the imported CSV file.

            The folder hierarchy is limited to ParentFolder\SubFolderX
        .Example
            C:\> Create-SPFoldersBulk –SiteUrl "http://yourdomain.com/sites/Finance" –LibraryName "Reports" –CSVPath "C:\Script_Files\folderList.csv"

            This example will create parent and subfolders within the Finance Departments 'Reports' library.
        .Notes
            Name: Create-SPFoldersBulk
            Author: Petro Margaritis
            Last Edit: 04/07/2012
            Keywords: Folder, List Item
        .Link
            http://www.iampetro.com/
    #>
    Param (
        [parameter(Mandatory=$true)][string]$SiteUrl,
        [parameter(Mandatory=$true)][string]$LibraryName,
        [parameter(Mandatory=$true)][string]$CSVPath
    )

    # Import CSV
    [array]$FolderList = Import-Csv $CSVPath

    # Script Variables
    $spWeb = Get-SPWeb $SiteUrl
    $spList = $spWeb.Lists[$LibraryName]

    Foreach ($folderGroup in $FolderList) {

        # Create Parent Folder
        $parentFolder = $spList.Folders.Add("",[Microsoft.SharePoint.SPFileSystemObjectType]::Folder,$folderGroup.Root)
        $parentFolder.Update()
        Write-Host "The Parent folder" $folderGroup.Root "was successfully created" -foregroundcolor Green

        # Loop variables
        $i = 1
        $col = "S"
        $colID = $col + $i

        While ($folderGroup.$colID -ne $null)
        {
            $newSubfolder = $splist.Folders.Add($parentFolder.Folder.ServerRelativeUrl, 
                [Microsoft.SharePoint.SPFileSystemObjectType]::Folder,$folderGroup.$colID)
            $newSubfolder.Update()
            Write-Host "The subfolder" $folderGroup.$ColID "was successfully created" -foregroundcolor Cyan
            $i++
            $colID = $col + $i
        }
    }
    $spWeb.Dispose()
}