All the functions we perform in the App Center Console, for XenApp 6.5, or Deliver Services Console, ,for XenApp 6.0, Can be performed using PowerShell commands. 

For this you may use PowerShell SDK.

1. Use the below link to download PowerShell SDK
   PowerShell SDK for XenApp 6.5 and 6.0
    
2. Extract the files and install the PowerShell SDK on a XenApp server
    
3. Refer to the 'Citrix XenApp 6.5 (or 6.0) Command Reference' document for the commands from
   Start Menu > All Programs > Citrix > XenApp 6.5 PowerShell SDK > 'Citrix XenApp 6.5 Server SDK Help' 
   • Browse to the XenApp commands section for reference to the XenApp cmdlets. 
4. To start using XenApp Powershell SDK launch Windows PowerShell with Citrix XenApp 6.5 Server SDK
   Start Menu > All Programs > Citrix > XenApp 6.5 PowerShell SDK > Windows PowerShell with Citrix XenApp 6.5 Server SDK or Windows PowerShell with Citrix XenApp 6.5 Server SDK (86), as applicable.