How to check the status of farm level features using powershell in SharePoint 2010

In this blog we will be seeing how to check the status of the farm level features in sharepoint using powershell

# Disabling Social Ribbon Control Feature in Farm level

$SocialRibbonFeatureStatus= Get-SPFeature -Farm | ?{$_.DisplayName -eq "SocialRibbonControl"}
if($SocialRibbonFeatureStatus -ne $null)
{
write-host -f white "Social Ribbon Control Feature is disabling"
Disable-SPFeature -Identity "SocialRibbonControl" -confirm:$false
write-host -f green "Social Ribbon Control Feature is disabled successfully"
}
else
{
write-host -f yellow "Social Ribbon Control Feature is already disabled"
}