引数を利用してpingの試行回数、ホスト、時間を指定して行う死活監視スクリプト

deadoralive.sh

#!/bin/bash

FILE="/home/user/shell/deadscript/ping_result.txt"
PACKET_LOSS_FILE="/home/user/shell/deadscript/ping_result_packet_loss.txt"
PACKET_TIME_FILE="/home/user/shell/deadscript/ping_result_time.txt"
PING_RESULT=`ping -c $1 $2 > $FILE`
RESULT_LOSS=`cat $FILE | tail -2 | head -1 | awk '{print $6}' | sed 's/\%//g' > $PACKET_LOSS_FILE`
RESULT_TIME=`cat $FILE | tail -2 | head -1 | awk '{print $10}' | sed 's/ms//g' > $PACKET_TIME_FILE`
LOSS=`cat $PACKET_LOSS_FILE`
TIME=`cat $PACKET_TIME_FILE`
RMFILE=`rm -f $FILE`

#パケロスが100かどうかで死活監視
if [ $LOSS -lt 100 ];then
    #パケットロスが100未満でもロス率が50%を超えていたらアラート
    if [ $LOSS -lt 50 ];then
        #pingの処理時間で応答確認を行う。第三引数の値よりも高い場合障害
        if [ $TIME -lt $3 ];then
            echo "$2 is OK. time is $TIME ms"
        else
            echo "time is too long to $2.  time is $TIME ms"
        fi
    else
        echo "PACKET LOSS HIGH! $LOSS % packet loss"
    fi
else
    echo "$2 is host down or $2 network is Obstruction. $LOSS % packet loss"
fi
RMPACKET_LOSS_FILE=`rm -f $PACKET_LOSS_FILE`
RMPACKET_TIME_FILE=`rm -f $PACKET_TIME_FILE`

第一引数が試行回数
第二引数が監視先ホスト名
第三引数が応答時間