Powershell - Citrix

load citrix ps adding  :  Add-PSSnapin Citrix.XenApp.Commands

Get the number of sessions in the farm:

$FarmRaw = Get-XAFarm
$FarmRaw.SessionCount

Get the number of sessions per app:

$Sessions = Get-XASession -BrowserName "Notepad"
$SessTotal = $sessions.count