#!/bin/sh score=`curl --silent "http://www.pool.ntp.org/scores/195.154.45.50/log?limit=1" 2>&1 | tail -1 | cut -f 5 -d ","` if [ $score == "" ] then echo "UNKNOWN: unable to parse result" exit 3 fi result=`echo "$score >= 20" | bc` if [ $result == 1 ] then echo "OK: score=$score|score=$score;;;;" exit 0 fi result=`echo "$score > 10" | bc` if [ $result == 1 ] then echo "WARNING: score=$score|score=$score;;;;" exit 1 else echo "CRITICAL: score=$score|score=$score;;;;" exit 2 fi