Show real network interfaces

show_eths.sh

#!/bin/bash
for f in $(find /sys/class/net -type l -not -lname '*virtual*' -printf '%p\n'); do
    dev=$(basename "$f")
    driver=$(readlink "$f/device/driver/module")
    if [ "$driver" ]; then
        driver=$(basename "$driver")
    fi
    addr=$(cat "$f/address")
    operstate=$(cat "$f/operstate")
    printf "%11s|[%s]|%10s|(%s)\n" "$dev" "$addr" "$driver" "$operstate"
done|sort