BEGIN {udppkts_sent=0; udppkts_rcvd=0; total_udpbytes=0;}  #initialize

### Do not forget to update node numbers in the script to match
### their real value based on your TCL script.

$1=="+" && $3=="1" && $5 == "cbr" {udppkts_sent++;}
$1=="r" && $4=="6" && $5 == "cbr" {
	udppkts_rcvd++; #if packet is received at node 8, increment the total number of packets received
	total_udpbytes += $6;
}

END {   
	udp_thru = udppkts_rcvd / udppkts_sent * 100;
	print "UDP throughput: " udp_thru " %" >> "hw3.log";
}