Check when players are on private server, UdpInDatagrams vs UdpOutDatagrams vs both?

[Cameronsplaze]

I'm trying to write something to tell me when friends are on/off my server, and your server check code here helped me understand why A2S wasn't working, thanks!

Out of curiosity though, why are you only checking UdpInDatagrams, and not both? (On this line)

Something like this should give you both:

list_udp_packets=$(nstat --zeros | awk '/Udp(In|Out)Datagrams/{print $2}' | paste -sd+)
# Variable in form of "InNumber+OutNumber" literally, i.e "5+7". Add them:
num_udp_packets=$(( $list_udp_packets ))

Is 'Out' just too noisy maybe?