wmr-watch.sh

#!/bin/bash

# crontab:
# 1  *  *  *  *  root  /home/pi/wmr100-pi/wmr-watch.sh

WATCH_FILE="/tmp/wmr100.cycle"
SLEEP_TIME="30m"

c0=`cat $WATCH_FILE`
sleep $SLEEP_TIME
c1=`cat $WATCH_FILE`

if [ "$c0" == "$c1" ]; then 
    /sbin/reboot
fi

#.