rpi-w1-temp

#!/bin/bash
# Based on a script by a man named Andrew
# Originally located at http://blog.theinternets.be/rpi-munin-temperatures/
# Don't forget to load kernel modules: w1-gpio w1-therm

if [ "$1" == "autoconf" ]; then
     if [ -e /sys/devices/w1_bus_master1/w1_master_slaves ]; then
         echo "yes"
     else
         echo "no"
         exit 1
     fi
elif [ "$1" == "config" ]; then
     echo "graph_title Raspberry Pi OneWire Temperature"
     echo "graph_vlabel Temperature in Celsius"
     echo "graph_category Sensors"
     I=1;
     for w1_slave in $(cat /sys/devices/w1_bus_master1/w1_master_slaves | sort)
     do
     	echo "temp$I.warning 30"
     	echo "temp$I.critical 40"
     	echo "temp$I.label $w1_slave"
        I=$((I+1));
     done
else
	I=1;
	for w1_slave in $(cat /sys/devices/w1_bus_master1/w1_master_slaves | sort)
	do
	  if test -f /sys/bus/w1/devices/$w1_slave/temperature; then
	    temp=$(</sys/bus/w1/devices/$w1_slave/temperature)
	  else
	    file=$(</sys/bus/w1/devices/$w1_slave/w1_slave)
	    temp=$(echo $file | sed -e 's/^.*=//' )
	  fi
	  awk "BEGIN { printf \"temp$I.value %2.3f\n\", $temp/1000 }"
	  I=$(($I+1));
	     
	done
fi