#!/usr/bin/env bash wireless_connected="" disconnected="/" ethernet_connected="" while true; do if ping -c1 8.8.8.8 &>/dev/null; then if [[ $(ip link | awk '/state UP/ {getline;print $1}') = link/ether ]]; then echo "$ethernet_connected"; sleep 10 else echo "$wireless_connected"; sleep 10 fi else echo "$disconnected"; sleep 1 fi done