#!/bin/bash LOWTEMP=46 HIGHTEMP=53 REFRESHRATE=1 LEDCONTROLLER="/usr/bin/ledcontroller" while (true); do temperature="$(sensors|grep 'id 0'|sed -e 's/\.0.*//' -e 's/.*+//')" if (( "$temperature" <= "$LOWTEMP" )); then $LEDCONTROLLER blue; elif (( "$temperature" < "$HIGHTEMP" )); then $LEDCONTROLLER green; else $LEDCONTROLLER red; fi; sleep "$REFRESHRATE"; done