modules/private/monitoring/plugins/check_mem.sh

   1 #!/bin/bash
   2
   3 if [ "$1" = "-w" ] && [ "$2" -gt "0" ] && [ "$3" = "-c" ] && [ "$4" -gt "0" ]; then
   4         FreeM=`free -m`
   5         memTotal_m=`echo "$FreeM" |grep Mem |awk '{print $2}'`
   6         memUsed_m=`echo "$FreeM" |grep Mem |awk '{print $3}'`
   7         memFree_m=`echo "$FreeM" |grep Mem |awk '{print $4}'`
   8         memBuffer_m=`echo "$FreeM" |grep Mem |awk '{print $6}'`
   9         memCache_m=`echo "$FreeM" |grep Mem |awk '{print $7}'`
  10         memUsedPrc=`echo $((($memUsed_m*100)/$memTotal_m))||cut -d. -f1`
  11         if [ "$memUsedPrc" -ge "$4" ]; then
  12                 echo "Memory: CRITICAL Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_m;;;; USED=$memUsed_m;;;; CACHE=$memCache_m;;;; BUFFER=$memBuffer_m;;;;"
  13                 exit 2
  14         elif [ "$memUsedPrc" -ge "$2" ]; then
  15                 echo "Memory: WARNING Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_m;;;; USED=$memUsed_m;;;; CACHE=$memCache_m;;;; BUFFER=$memBuffer_m;;;;"
  16                 exit 1
  17         else
  18                 echo "Memory: OK Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used|TOTAL=$memTotal_m;;;; USED=$memUsed_m;;;; CACHE=$memCache_m;;;; BUFFER=$memBuffer_m;;;;"
  19                 exit 0
  20         fi
  21 else # If inputs are not as expected, print help.
  22         sName="`echo $0|awk -F '/' '{print $NF}'`"
  23         echo -e "\n\n\t\t### $sName Version 2.0###\n"
  24         echo -e "# Usage:\t$sName -w <warnlevel> -c <critlevel>"
  25         echo -e "\t\t= warnlevel and critlevel is percentage value without %\n"
  26         echo "# EXAMPLE:\t/usr/lib64/nagios/plugins/$sName -w 80 -c 90"
  27         echo -e "\nCopyright (C) 2012 Lukasz Gogolin (lukasz.gogolin@gmail.com), improved by Nestor 2015\n\n"
  28         exit
  29 fi