/proc/net/dev

cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
   lo: 5464093551 3826029    0    0    0     0          0         0 5464093551 3826029    0    0    0     0       0          0
 eth0: 1191959595 5678723    0    0    0     0          0         0 5234245511 5103603    0    0    0     0       0          0

enp1s0

See also

• FHS, /proc/, /proc/net/, /boot/, /run/, /dev/, /usr/, /var/run/, /etc/, /var/, /var/lib/ /var/log/, /var/www/, /opt/, /lib/, /sys/, /proc/kcore, /proc/sys/, /proc/sys/vm/, /snap/, /mnt/, /mnt/data, /var/opt/, /usr/bin/, /lib/, /proc/$PID/, /proc/self/
• ifconfig, ip, /proc/net/dev, ifconfig -a