If you quickly want to add users to site collection admins across #SharePoint run the following PowerShell script. The script will ask you to fill in the Domain\User and also the Web Application in which you want to run against.
param
(
[Parameter(Mandatory=$true, HelpMessage=’username in format DOMAIN\username’)] [string]$Username = “”,
[Parameter(Mandatory=$true, HelpMessage=’url for web application e.g. http://collab’)] [string]$WebApplicationUrl = “”)
Write-Host “Setting up user $Username as site collection admin on all sitecollections in Web Application $WebApplicationUrl” -ForegroundColor White;
$webApplication = Get-SPWebApplication $WebApplicationUrl;if($webApplication -ne $null)
{foreach($siteCollection in $webApplication.Sites){
Write-Host “Setting up user $Username as site collection admin for $siteCollection” -ForegroundColor White;
$userToBeMadeSiteCollectionAdmin = $siteCollection.RootWeb.EnsureUser($Username);
if($userToBeMadeSiteCollectionAdmin.IsSiteAdmin -ne $true)
{
$userToBeMadeSiteCollectionAdmin.IsSiteAdmin = $true;
$userToBeMadeSiteCollectionAdmin.Update();
Write-Host “User is now site collection admin for $siteCollection” -ForegroundColor Green;
}
else
{
Write-Host “User is already site collection admin for $siteCollection” -ForegroundColor DarkYellow;
}Write-Host “Current Site Collection Admins for site: ” $siteCollection.Url ” ” $siteCollection.RootWeb.SiteAdministrators;
}
}
else
{
Write-Host “Could not find Web Application $WebApplicationUrl” -ForegroundColor Red;
}
