PowerShell: Activate feature on all site levels.

	#
	# Description:
	# Activate the site feature on all sub-sites
	# This feature creates custom list
	#
	# Created Date:
	# v1.0 - 27-11-2017
	#
	# Author:
	# Vikas Bansal
	#
	Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
	#feature ID to create custom list
	$FeatureID="3e0d7f50-a6b7-45a6-b5a1-77950ef4327f"
	#get all webs (sub-sites) under site collection
	$WebsColl = Get-SPSite https://sp2013.com | Get-SPWeb -Limit ALL
	#get the Feature
	$Feature = Get-SPFeature -Limit All | Where { $_.ID -eq $FeatureID }
	#check if Feature exists
	if($Feature -ne $null) {
	Write-Host "feature exists" -ForegroundColor DarkBlue -BackgroundColor Yellow
	#iterate through through each sub-site activate the feature
	foreach($web in $WebsColl){
	#check if the Feature is activated
	if (Get-SPFeature -web $web.Url | Where {$_.ID -eq $FeatureId}) {
	Write-Host "feature is already activated on " $web.Url -ForegroundColor DarkBlue -BackgroundColor Yellow
	}
	else {
	Write-Host "feature not activated on " $web.Url -ForegroundColor Yellow -BackgroundColor Red
	#Activate the Feature
	Enable-SPFeature –identity $FeatureID -URL $web.URL -Confirm:$false
	Write-Host "feature is activated now on " $web.Url -ForegroundColor DarkBlue -BackgroundColor White
	}
	}
	}
	else {
	Write-Host "feature does not exists" -ForegroundColor Yellow -BackgroundColor Red
	}

view raw PowerShell_ActivateFeatureOnAllSiteLevels.ps1 hosted with ❤ by GitHub