Modifying File Types in SharePoint 2010 Enterprise Search Index via PowerShell

Powershell commands for File Types in SharePoint 2010 content index

Powershell commands for adding, deleting and getting the file types in the content index.

Add a new file type to the content index
$searchApplicationName = Get-SPEnterpriseSearchServiceApplication "<NAME OF YOUR SEARCH SERVICE APPLICATION>"
$searchApplicationName | New-SPEnterpriseSearchCrawlExtension "ascx"

List a particular file extension
$searchApplicationName = Get-SPEnterpriseSearchServiceApplication "<NAME OF YOUR SEARCH SERVICE APPLICATION>"
$searchApplicationName | Get-SPEnterpriseSearchCrawlExtension "ascx"

Display list of all file extensions
$searchApplicationName = Get-SPEnterpriseSearchServiceApplication "<NAME OF YOUR SEARCH SERVICE APPLICATION>"
$searchApplicationName | Get-SPEnterpriseSearchCrawlExtension

Delete an extension
$searchApplicationName = Get-SPEnterpriseSearchServiceApplication "<NAME OF YOUR SEARCH SERVICE APPLICATION>"
$searchApplicationName | Get-SPEnterpriseSearchCrawlExtension "ascx"| Remove-SPEnterpriseSearchCrawlExtension