How to get network adapter stats in linux/Mac OSX?

Question

I\'m looking for a way to get hold of network stats in C on Linux and MacOSX. Specifically, I need to monitor the number of bytes uploaded and downloaded from each network a

Answer 1

on Linux:

• low level: check /sys/class/net/eth0/statistics/
• slightly higher level: ip -s link show eth0
• graphical: iftop
• interactive: iptraf