gistfile1.txt

$counters = @("\Network Interface(*)\Bytes Total/sec","\Network Interface(*)\Packets/sec","\Network Interface(*)\Packets Received Discarded","\Network Interface(*)\Packets Received Errors","\Network Interface(*)\Packets Outbound Discarded","\Network Interface(*)\Packets Outbound Errors")

$timeout = new-timespan -Seconds 10
$sw = [diagnostics.stopwatch]::StartNew()
while ($sw.elapsed -lt $timeout)
{
    get-counter -counter $counters  | select -expand countersamples | select timestamp,path,instancename,cookedvalue | export-csv -append -notypeinformation "c:\misc\counters.txt"
    start-sleep -seconds 2
}
write-host "Finished"