Any way to use cmd tshark for a gns3 wire?

edit

I have a basic lua script that I need to use on a gns3 wire, but I can't get there from the windows cmd. Any advise?

    packets = 0;
retrans = 0;

local function init_listener()
    local tap = Listener.new("tcp")
    function tap.reset()
        packets = 0;
    end
    function tap.packet(pinfo,tvb,ip)
        packets = packets + 1
    end

     -- retransmission, total
    local retrans_tap = Listener.new("frame", "tcp.analysis.retransmission")
    function retrans_tap.reset()
        retrans = 0
    end
    function retrans_tap.packet(pinfo, tvb, ip)
        retrans = retrans + 1
    end
    function retrans_tap.draw()
        file = io.open("log.txt", "a")
        file:write("packets ",packets,"\n","retrans ",retrans, "\n","ratio ",retrans/packets, "\n")
        io.close(file)
        -- change "> n" for tcp retransmission threshold 
        if retrans/packets > .03 then
            alert_file = io.open("alert.txt","a")
            alert_file:write(retrans/packets," @ ",os.time(os.date("!*t")), "\n")
            io.close(alert_file)
        end
    end

end
init_listener()

My batch file

> set loopcount=5 :loop tshark -X
> lua_script:hello2.lua -i 3 -a
> duration:10 -J "tcp" > temp.txt set /a
> loopcount=loopcount-1 if
> %loopcount%==0 goto exitloop goto loop
> :exitloop