Smoothly activating a Feature across SharePoint Site Collections

It’s useful to be able to activate features across site collections. This two line script grabs the desired feature, then grabs the collection of Site Collections and pipes them into a Feature Activation CmdLet masking errors; errors occur such as when activating a feature that is already activated.

$defaultOpenBehaviorFeatureId = $(Get-SPFeature -limit all | where {$_.displayname -eq "OpenInClient"}).Id
Get-SPSite -limit ALL | foreach { enable-SPFeature $defaultOpenBehaviorFeatureId -url $_.URL -ErrorAction SilentlyContinue }

This is with a sample filter:

$defaultOpenBehaviorFeatureId = $(Get-SPFeature -limit all | where {$_.displayname -eq "OpenInClient"}).Id
Get-SPSite  -limit all | where {$_.url -like "ht tp://SharePoint dev/ThisPath/*"}  | foreach { enable-SPFeature $defaultOpenBehaviorFeatureId -url $_.URL -ErrorAction SilentlyContinue }