每月网卡流量临界点时发邮件通知

 #!/bin/bash

 

mailer="[email protected]"

DATA=$(date +%d)

 

if [ $DATA == 01 ]

then

IN=$(ifconfig eth0 |grep 'TX bytes'|awk '{print$6}'|sed "s/^.*://")

OUT=$(ifconfig eth0 |grep 'RX bytes'|awk '{print$2}'|sed "s/^.*://")

echo $IN > in_interface

echo $OUT > out_interface

exit 0

else

OLD_IN=$(cat in_interface)

OLD_OUT=$(cat out_interface)

NEW_IN=$(ifconfig eth0 |grep 'TX bytes'|awk '{print$6}'|sed "s/^.*://")

NEW_OUT=$(ifconfig eth0 |grep 'RX bytes'|awk '{print$2}'|sed "s/^.*://")

A=$(expr ${NEW_IN} - ${OLD_IN});

B=$(expr ${NEW_OUT} - ${OLD_OUT});

fi

 

C=$(expr ${A} + ${B});

if [ $C -gt 34084860461056 ]

then

IPADDR=`ifconfig eth0 |grep 'inet addr'|awk '{print $2}'|awk -F: '{print $2}'`

echo " At $(date) Error over flow 31TB ! Report from $IPADDR ." | mail -s "WatchDog Newdownload1 over flow" $mailer

else

exit 0

fi