Strange behavior on Power shell Scripting

Hello,

Syntax: Test-CsPresence -TargetFqdn atl-cs-001.litwareinc.com -SubscriberSipAddress "sip:pilar@litwareinc.com" -SubscriberCredential $cred1 -PublisherSipAddress "sip:kenmyer@litwareinc.com" -PublisherCredential $cred2

• The below Powershell commandlet is not working in our usual PS format when placing the entire syntax in -Scriptblock{Syntax}

                                But when making something like below, its working and the installation getting started

               “ try{

                $cmd= Invoke – command -session $session –scriptblock {;}

                                Test-CsPresence -TargetFqdn atl-cs-001.litwareinc.com -SubscriberSipAddress "sip:pilar@litwareinc.com" -SubscriberCredential $cred1 -PublisherSipAddress "sip:kenmyer@litwareinc.com" -PublisherCredential $cred2

                   }”

                Wrtie-host $cmd

               I donno why this strange behaviour. Kindly Someone help on this.

Regards,

Julie