$app = "PS - User Catch"
$ver = "v 0.2"

$start = "Stai eseguendo:"
$exec = "Lo script $app e' in esecuzione."

Write-Host $start, $app, $ver, "`n$exec"

$UserCatch = (173..176) | % {
    $Ip = "172.16.91.$_";
    $Status = test-connection -computername "$ip" -quiet -count 1;
        
        $StatusOut = switch ($Status) {
        'True' {"True"}
        'False' {"`0"}
        }

    $GetHostname = Resolve-DnsName $ip -ErrorAction Ignore |select -exp NameHost;

        $QueryUser = if ($GetHostname -like 'PC*'){
            foreach ($s in $GetHostname) #For Each Server
            {
                foreach($ServerLine in @(query user /server:$s) -split "\n") #Each Server Line
                {
                    #USERNAME              SESSIONNAME        ID  STATE   IDLE TIME  LOGON TIME
            
                    $Parsed_Server = $ServerLine -split "\s+"
            
                    $Parsed_Server[1] #USERNAME
                    $Parsed_Server[4] #STATE
                    $Parsed_Server[6] #LOGON TIME
                }
            }
        }

    Write-output "`n$IP`t$StatusOut`t$GetHostname"

    if ($GetHostname -like 'PC*'){
        Write-Output "`n$QueryUser`n"
    }
}

Write-Host $UserCatch