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Bob: 1 revision
2013-09-19T06:19:56Z
<p>1 revision</p>
<p><b>New page</b></p><div>==Creditation==<br />
*http://blog.vergiss-blackjack.de/wp-uploads/2010/04/check_memory.txt<br />
<br />
==Script==<br />
<pre><br />
#!/bin/bash<br />
<br />
# Nagios plugin to check memory consumption<br />
# Excludes Swap and Caches so only the real memory consumption is considered<br />
<br />
source /usr/local/nagios/libexec/utils.sh<br />
<br />
# set default values for the thresholds<br />
WARN=90<br />
CRIT=95<br />
<br />
while getopts "c:w:h" ARG; do<br />
case $ARG in<br />
w) WARN=$OPTARG;;<br />
c) CRIT=$OPTARG;;<br />
h) echo "Usage: $0 -w <warning threshold> -c <critical threshold>"; exit;;<br />
esac<br />
done<br />
<br />
MEM_TOTAL=`free | fgrep "Mem:" | awk '{print $2}'`;<br />
MEM_USED=`free | fgrep "/+ buffers/cache" | awk '{print $3}'`;<br />
<br />
PERCENTAGE=$(($MEM_USED*100/$MEM_TOTAL))<br />
echo "${PERCENTAGE}% ($((($MEM_USED)/1024)) of $((MEM_TOTAL/1024)) MB) used";<br />
<br />
if [ $PERCENTAGE -gt $CRIT ]; then<br />
exit $STATE_CRITICAL;<br />
elif [ $PERCENTAGE -gt $WARN ]; then<br />
exit $STATE_WARNING;<br />
else<br />
exit $STATE_OK;<br />
fi<br />
</pre></div>
Bob