Check ram nagios

check_ram

#!/bin/bash



if [ "$1" = "-w" ] && [ "$2" -gt "0" ] && [ "$3" = "-c" ] && [ "$4" -gt "0" ]; then



        memTotal_b=`free -b |grep Mem |awk '{print $2}'`

        memFree_b=`free -b |grep Mem |awk '{print $4}'`

        memBuffer_b=`free -b |grep Mem |awk '{print $6}'`

        memCache_b=`free -b |grep Mem |awk '{print $7}'`



        memTotal_m=`free -m |grep Mem |awk '{print $2}'`

        memFree_m=`free -m |grep Mem |awk '{print $4}'`

        memBuffer_m=`free -m |grep Mem |awk '{print $6}'`

        memCache_m=`free -m |grep Mem |awk '{print $7}'`



        memUsed_b=$(($memTotal_b-$memFree_b-$memBuffer_b-$memCache_b))

        memUsed_m=$(($memTotal_m-$memFree_m-$memBuffer_m-$memCache_m))



        memUsedPrc=$((($memUsed_b*100)/$memTotal_b))





        if [ "$memUsedPrc" -ge "$4" ]; then

                echo "Memory: CRITICAL Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"

                $(exit 2)

        elif [ "$memUsedPrc" -ge "$2" ]; then

                echo "Memory: WARNING Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used!|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"

                $(exit 1)

        else

                echo "Memory: OK Total: $memTotal_m MB - Used: $memUsed_m MB - $memUsedPrc% used|TOTAL=$memTotal_b;;;; USED=$memUsed_b;;;; CACHE=$memCache_b;;;; BUFFER=$memBuffer_b;;;;"

                $(exit 0)

        fi



else

        echo "check_mem v1.1"

        echo ""

        echo "Usage:"

        echo "check_mem.sh -w <warnlevel> -c <critlevel>"

        echo ""

        echo "warnlevel and critlevel is percentage value without %"

        echo ""

        echo "Copyright (C) 2012 Lukasz Gogolin ([email protected])"

        exit

fi