How to Activate a Feature using PowerShell in SharePoint 2013

In this article, let us see, how to Activate the Site Scoped, WebApplication Scoped Features using PowerShell in SharePoint 2013.

 $ErrorActionPreference = "Stop"
 cls
 
 ############################# Feature Names ###############################
 
 $SiteScopedFeature = "MyFeature.InternalName" #Target Site Collection
 
 $WebApplicationScopedFeature = "MyWebApplicationFeature.InternalName" #Target Web Application
 
 ######################################################################################
 
 $args = new-object string[] 1
 $args[0] = "CloudShare"
 
 function AddPowerShellSnapin()
 {
     try
     {
         Write-Host "Adding PowerShell Snap-in" -ForegroundColor Green
         # Try to get the PowerShell Snappin.  If not, then adding the PowerShell snappin on the Catch Block
         Get-PSSnapin "Microsoft.SharePoint.PowerShell" 
     }
     catch
     {
         if($Error[0].Exception.Message.Contains("No Windows PowerShell snap-ins matching the pattern 'Microsoft.SharePoint.PowerShell' were found"))
         {
             Add-PSSnapin "Microsoft.SharePoint.PowerShell"
         }
     }
     Write-Host "Finished Adding PowerShell Snap-in" -ForegroundColor Green
 }
 
 function ActivateFeature($DisplayName, $siteurl)
 {
     Write-Host "Activating " $DisplayName "In Site Collection " $siteurl
     $TempCount = (Get-SPSite  $siteurl | %{ Get-SPFeature -Site $_ } | Where-Object {$_.DisplayName -eq $DisplayName} ).Count
     if($TempCount -eq 0)
     {
         # if not, Enable the Feature.
         Get-SPFeature  $DisplayName | Enable-SPFeature -Url  $siteurl 
     }            
     else
     {
         # If already Activated, then De-Activate and Activate Again.
         Disable-SPFeature $DisplayName -Url $siteurl  –Confirm:$false
         Get-SPFeature  $DisplayName | Enable-SPFeature -Url  $siteurl 
     }
 }
 
 function ActivateFeatureInWebApplicationScope($DisplayName, $siteurl)
 {
         
     Write-Host "Activating " $DisplayName "In Web Application " $siteurl
     $TempCount = (Get-SPWebApplication $siteurl | %{ Get-SPFeature -WebApplication $_ } | Where-Object {$_.DisplayName -eq $DisplayName} ).Count
     if($TempCount -eq 0)
     {
         # if not, Enable the Feature.
         Get-SPFeature  $DisplayName | Enable-SPFeature -Url $siteurl 
     }            
     else
     {
         # If already Activated, then De-Activate and Activate Again.
         Disable-SPFeature $DisplayName -Url $siteurl  –Confirm:$false
         Get-SPFeature  $DisplayName | Enable-SPFeature -Url  $siteurl 
     }
 }
 
 try
 {
    
     AddPowerShellSnapin
     
     #Read arguement and store environment URL
     if($args[0] -eq 'Cloud')
     {
         $SiteCollectionURL ="http://SathishServer:1001/sites/Test"
         $WebApplicationURL ="http://SathishServer:1001/"
 
     }
     elseif($args[0] -eq 'DEV')
     {
 	# Give the URLs appropriately         
     }
     elseif ($args[0] -eq 'INT') 
     {
          	# Give the URLs appropriately
     }
     elseif ($args[0] -eq 'QA') 
     {
          	# Give the URLs appropriately
     }
     elseif ($args[0] -eq 'PROD') 
     {
          	# Give the URLs appropriately
     }
     else 
     {
         Write-Host -f Yellow "Environment not specified - please pass appropriate environment to deploy (Possible values are DEV INT QA PROD)"
         Log-Message $logFilePath  "Environment not specified - please pass appropriate environment to deploy (Possible values are DEV INT QA PROD)"
         exit
     }
    
     ActivateFeature $SiteScopedFeature $SiteCollectionURL
 
     ActivateFeatureInWebApplicationScope $WebApplicationScopedFeature $WebApplicationURL
     
 
     Write-Host "Script Execution Completed Successfully" -ForegroundColor Green 
 }
 catch
 {
     Write-Host "Custom Exception Happened on Main : " + $Error[0].Exception.Message -ForegroundColor Red  
 }
 

The script will actually De-Activate and Activate the Feature specified on the top of the script. The script is mostly self explanatory. Hence, I am not explaining much about that.

Happy Coding.

Sathish Nadarajan.