Activate Publishing feature at all site collection through powershell

$feature = Get-SPFeature PublishingSite
$siteCollections = Get-SPSite –WebApplication http://sp2010
$siteCollections | foreach-object {
   Write-Host "Activating" $feature.DisplayName "on" $_.Url
   Enable-SPFeature $feature -Url $_.Url
}

Move User profile and Search services to new app server

Issue:
Need to move all the services including UPA and Search services to new app server.
Resolution:
1. Start all the services through manage services at server in CA for new app server.
2. For user profile services and sync services:
First start the user profile service at new server through manage services at server in CA, then start the user profile sync service through same option. It will redirect to new page and need to select the correct user profile application --> Credential --> ok
It will take time around 10-15 minutes to start this service including two FIM services in windows console.
3. For search service:

Start SharePoint server search from manage services at server and then enter the new search DB.

Start SharePoint Foundation search through manage services at server. It will redirect to Search service application. Click on Farm search administration --> Modify topology --> Changed teh server name for Index, Crawl and Admin options with in it

At last run the command to confirm the services and the index location:

stsadm -o spsearch -action list