THEAARBS tools - speedof

#!/bin/bash
Say() { echo -e "$1\n$2" ; notify-send "$1" "$2" ;}

get_interfaces() {
	for i in $all_interfaces ; do
		interface_name="${BLOCK_INSTANCE:-$i}"
		case $interface_name in
			eno*|enp*|eth*) LanInterface=$interface_name ;;
			wlp*|wlan*) WLanInterface=$interface_name ;;
		esac
	done ;}

speed_meter() {
	$(ifinstalled speedometer) &&
	all_interfaces=$(ls /sys/class/net)
	get_interfaces $all_interfaces
	case $1 in
		lan) the_interface=$LanInterface ;;
		wlan) the_interface=$WLanInterface ;;
	esac
	[[ -z $(ip addr show $the_interface | perl -n -e '/inet ([^\/]+)/ && print $1') ]] &&
	Say "⛔ Error: interface $the_interface is not connected" ||
	speedometer -t $the_interface ;}

get_speedlimits() {
	$(ifinstalled speedtest) &&
	Say "⌛ Testing internet speeds." "This might take a minute."
	speedlimits=( $(speedtest | grep -E 'Download:|Upload:') )
	speeddown=${speedlimits[@]:0:3} speedup=${speedlimits[@]:3:5}
	Say "⬇ $speeddown" "⬆ $speedup" ;}

case $1 in
	lan|-l) speed_meter lan ;;
	wlan|wifi|-w) speed_meter wlan ;;
	wan|me|net|-i) get_speedlimits ;;
	*) echo -e "Usage:\n  speedof [argument]\n\nAvailable arguments:\n  -l, lan - get wired ethernet speeds\n  -w, wlan, wifi - get wireless speeds\n  -i, wan, me, net - get internet speeds" ;;
esac