xbar plugin - Print active internet interface

ethernet_or_wifi.5m.sh

#!/usr/bin/env bash

# A simple plugin for xbar to print the interface you are conntected to the internet with.
# See: https://github.com/matryer/xbar and https://xbarapp.com/
# Probably could be a plugin in xbar repo, TBD.
# Use case - sometimes my mac uses wifi when it shoudl use ethernet.

# Instructions:
# Name `ethernet_or_wifi.5m.sh`
# chmod +x it

# Thanks to: https://apple.stackexchange.com/questions/191879/how-to-find-the-currently-connected-network-service-from-the-command-line#comment635764_433612

default_route=$(route get default)

if [[ "$default_route" == '' ]]; then
    source="Unconnected"
else
    networks=$(networksetup -listnetworkserviceorder)
    interface=$(echo "$default_route" | awk '/interface/ {print $2}' )
    source=$(echo "$networks" | awk -v interface="$interface" "/$interface/{sub(/\([0-9]+\)\ /,\"\",a); print a} {a=\$0}")
fi

echo "$source"

In my menu bar:

or

or