Looking for help with PowerShell script to delete folders in a Document Library

Question

I'd like to create a PowerShell script to delete old folders in a Document library that are over 30 days old. Has anyone created something like this?
Orange County District Attorney

Answer 1

Hello Sid:
I am trying to do the same and Iam running the script to delete the subfolders inside a folder  but I have some errors. 
Could you please take a look?
_______Script________
$web = Get-SPWeb -Identity https://myportal.mydomain.com
$list = $web.GetList("ar_mailingactivity")
$query =  New-Object Microsoft.SharePoint.SPQuery 
$camlQuery = '<Where><And><Eq><FieldRef Name="ContentType" /><Value Type="Computed">Folder</Value></Eq><Leq><FieldRef Name="Created" /><Value Type="DateTime"><Today OffsetDays="-30" /></Value></Leq></And></Where>'
$query.Query = $camlQuery
$items = $list.GetItems($query)
for ($intIndex = $items.Count - 1; $intIndex -gt -1; $intIndex--)
   $items.Delete($intIndex);
________Errors_______
Unable to index into an object of type System.Management.Automation.PSMethod.
At C:\Script.ps1:2 char:22
+ $list =$webGetList <<<< "ar_mailingactivity"]
+ CategoryInfo
:InvalidOperation: (ar_mailingactivity:String) [], RuntimeException
+ FullyQualifiedErrorID
:CannotIndex
You cannot call a method on  a null-valued expression.
At c:\Script.ps1:6 char:24
+ $items = $list.GetItems <<<< ($query)
+ CategoryInfo
:InvalidOperation: (GetItems:String) [], RuntimeException
+ FullyQualifiedErrorID
:InvokeMethodOnNull