Item Name Sitecore event handler

HandleItemName.cs

protected void HandleItemName(object sender, EventArgs args)
{
	try
	{
		InitializeConfiguration();

		Item item = Event.ExtractParameter(args, 0) as Item;

		if (PageTemplates.Contains(item.TemplateID.ToString()) &&
			item.Database.Name == this.ItemHandlerDatabase &&
			item.Paths.Path.StartsWith(this.ItemHandlerParentItemPath) &&
			!item.Name.Equals(item.Name.ToLower().Replace(" ", SEOFriendlyCharacter))
		)
		{
			string displalyName = item.Appearance.DisplayName;
			if (string.IsNullOrEmpty(displalyName))
			{
				displalyName = item.Name;
			}
			using (new SecurityDisabler())
			{
				item.Editing.BeginEdit();
				item.Appearance.DisplayName = displalyName;
				item.Name = displalyName.ToLower().Replace(" ", SEOFriendlyCharacter);
				item.Editing.EndEdit();
			}
		}
	}
	catch (Exception ex)
	{
		Log.Error("ItemnameHandlerandleItemName :", ex, this);
	}
}

HandleItemName.ps1

cd 'master:/content/Home'
Get-ChildItem -Recurse . | ForEach-Object{
  if($_.Fields["__Display name"].Value -eq "")
  {
    $originalName = $_.Name
  }
  else
  {
    $originalName = $_.Fields["__Display name"].Value 
  }

  $newName = $originalName.Replace(" ", "-")
  $newName = $newName.ToLower()
  Write-Host "Renaming item from " -nonewline;
  Write-Host $originalName -f Yellow -nonewline;
  Write-Host " to " -nonewline;
  Write-Host $newName -f Green;

  if($newName -ne "")
  {
    $_.Editing.BeginEdit()
    $_.Name = $newName;
    $_.Fields["__Display name"].Value = $originalName;
    $_.Editing.EndEdit()
    ""
  }
  else
  {
    Write-Host $orignnalName
  }
}

HandleItemNamePatch.config

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:set="http://www.sitecore.net/xmlconfig/set">
  <sitecore>
    <events>
      <event name="item:added">
        <handler type="XXXX.Events.ItemnameHandler, XXXX" method="HandleItemName" />
      </event>
      <event name="item:renamed">
        <handler type="XXXX.Events.ItemnameHandler, XXXX" method="HandleItemName" />
      </event>
    </events>
    <settings>
      <setting name="Page_Template_Ids" 
          value="{4EBC52AA-AE5B-4099-96BD-EC631CBDFB93},{00931377-84E1-4061-9A64-AB98EB09B863},
          {7D6FF33A-C873-4F85-BA14-9DAB6E729BA2}" />
      <setting name="PageTemplate_Ids_Delimeter" value="," />
      <setting name="ItemHandler_Database" value="master" />
      <setting name="SEO_Friendly_Character" value="-" />
      <setting name="ItemHandler_ParentItemPath" value="/sitecore/content/Home" />
    </settings>
  </sitecore>
</configuration>