PowerShell Script - Republish Content Type

$CTHubURL = "{<Content Type Hub Setup URL>E.g. http://mySharePointSite :1111/}"
#Get Content Type site and web objects
$ctHubSite = Get-SPSite $CTHubURL
$ctHubWeb = $ctHubSite.RootWeb
#Check the site is a content type hub
if ([Microsoft.SharePoint.Taxonomy.ContentTypeSync.ContentTypePublisher]::IsContentTypeSharingEnabled($ctHubSite))
{
#Set up ContentTypePublisher object to allow publishing through the Content Type Hub site
$spCTPublish = New-Object Microsoft.SharePoint.Taxonomy.ContentTypeSync.ContentTypePublisher ($ctHubSite)
#Step through each content type in the content type hub
$ctHubWeb.ContentTypes | Sort-Object Name | ForEach-Object {
#Has the content type been published?
if ($spCTPublish.IsPublished($_))
{
#Republish content type
$spCTPublish.Publish($_)
write-host "Content type" $_.Name "has been republished" -foregroundcolor Green
}
else
{
write-host "Content type" $_.Name "is not a published content type"
}
}
}
else
{
write-host $CTHubURL "is not a content type hub site"
}
#Dispose of site and web objects
$ctHubWeb.Dispose()
$ctHubSite.Dispose()