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#!/bin/bash
#set -x
pxA=$1
pxB=$2
pxC=$3
pxD=$4
A_last_RPS_file=/var/cache/nagios3/RPS_$pxA.txt
B_last_RPS_file=/var/cache/nagios3/RPS_$pxB.txt
C_last_RPS_file=/var/cache/nagios3/RPS_$pxC.txt
D_last_RPS_file=/var/cache/nagios3/RPS_$pxD.txt

if [ ! -f $A_last_RPS_file ] ; then
    echo 0 >  $A_last_RPS_file
    chmod 666 $A_last_RPS_file
fi
if [ ! -f $B_last_RPS_file ] ; then
    echo 0 >  $B_last_RPS_file
    chmod 666 $B_last_RPS_file
fi
if [ ! -f $C_last_RPS_file ] ; then
    echo 0 >  $C_last_RPS_file
    chmod 666 $C_last_RPS_file
fi
if [ ! -f $D_last_RPS_file ] ; then
    echo 0 >  $D_last_RPS_file
    chmod 666 $D_last_RPS_file
fi

A_LAST_RPS=$(cat $A_last_RPS_file)
B_LAST_RPS=$(cat $B_last_RPS_file)
C_LAST_RPS=$(cat $C_last_RPS_file)
D_LAST_RPS=$(cat $D_last_RPS_file)

A_Last_RPS_file_time=$(date -d "- `date +%s -r $A_last_RPS_file` seconds" "+%s")
B_Last_RPS_file_time=$(date -d "- `date +%s -r $B_last_RPS_file` seconds" "+%s")
C_Last_RPS_file_time=$(date -d "- `date +%s -r $C_last_RPS_file` seconds" "+%s")
D_Last_RPS_file_time=$(date -d "- `date +%s -r $D_last_RPS_file` seconds" "+%s")

for pxy in $pxA $pxB $pxC $pxD
do
    for REQ in `snmpwalk -Cc -v2C -c abcdefghijklmnop $pxy:3401 -m SQUID-MIB SQUID-MIB::cacheClientHttpRequests | awk '{print $4}'`
    do
        REQ_CNT=$(($REQ_CNT + $REQ))
        PXY_CNT=$(($PXY_CNT + $REQ))
    done
    if [ "$pxy" == "$pxA" ]; then
        let cnt_A=$PXY_CNT
    fi
    if [ "$pxy" == "$pxB" ]; then
        let cnt_B=$PXY_CNT
    fi
    if [ "$pxy" == "$pxC" ]; then
        let cnt_C=$PXY_CNT
    fi
    if [ "$pxy" == "$pxD" ]; then
        let cnt_D=$PXY_CNT
    fi
    PXY_CNT=0
done

PXA_DIFF_RES=$(($cnt_A - $A_LAST_RPS))
if [ "$PXA_DIFF_RES" -lt "0" ];then
    PXA_DIFF_RES=0
    PXA_RPS=0
else
    PXA_RPS=$(( PXA_DIFF_RES / $A_Last_RPS_file_time))
fi
PXB_DIFF_RES=$(($cnt_B - $B_LAST_RPS))
if [ "$PXB_DIFF_RES" -lt "0" ];then
    PXB_DIFF_RES=0
    PXB_RPS=0
else
    PXB_RPS=$(( PXB_DIFF_RES / $B_Last_RPS_file_time))
fi
PXC_DIFF_RES=$(($cnt_C - $C_LAST_RPS))
if [ "$PXC_DIFF_RES" -lt "0" ];then
    PXC_DIFF_RES=0
    PXC_RPS=0
else
    PXC_RPS=$(( PXC_DIFF_RES / $C_Last_RPS_file_time))
fi
PXD_DIFF_RES=$(($cnt_D - $D_LAST_RPS))
if [ "$PXD_DIFF_RES" -lt "0" ];then
    PXD_DIFF_RES=0
    PXD_RPS=0
else
    PXD_RPS=$(( PXD_DIFF_RES / $D_Last_RPS_file_time))
fi




echo $cnt_A > $A_last_RPS_file
echo $cnt_B > $B_last_RPS_file
echo $cnt_C > $C_last_RPS_file
echo $cnt_D > $D_last_RPS_file

echo "$pxA":"$PXA_RPS $pxB":"$PXB_RPS $pxC":"$PXC_RPS $pxD":"$PXD_RPS | $pxA=$PXA_RPS;$pxB=$PXB_RPS;$pxC=$PXC_RPS;$pxD=$PXD_RPS"