#!/bin/bash

MINTEMP=0
MAXTEMP=89

if [ ! -d /tmp/dht22vars/ ]; then
    mkdir /tmp/dht22vars/
fi

TEMP=$(/opt/lol_dht22/loldht 0 | grep "Temperature =" | awk '{ print $7 }') 

if [ $(echo "if (${TEMP} > ${MAXTEMP}) 1 else 0" | bc) -eq 1 -o $(echo "if (${TEMP} < ${MINTEMP}) 1 else 0" | bc) -eq 1 ]; then
        if [ -f /tmp/dht22vars/temp0.txt ]; then
            cat /tmp/dht22vars/temp0.txt
        fi
    else
        echo $TEMP
        echo $TEMP > /tmp/dht22vars/temp0.txt
    fi