监控网卡流量脚本

2012-01-15 YY.K Permalink

#! /bin/bash

rmail="[email protected]"
N="2000000"
host=`hostname`
while :; do
      n=`sar -n DEV 1 2  |grep eth0 | tail -n1 |awk '{print $5}' |cut -d. -f1`
      if [ $n -gt $N ] ; then
      sar -n DEV 1 |grep eth0 | tail -n1>/tmp/sar.txt
      mail -s $host\_flow:`echo $n`  $rmail </tmp/sar.txt
      sleep 600
      fi
      sleep 3
done