监控网络流量的脚本

#!/bin/sh
if [ -n “$1″ ]; then
eth_name=$1
else
eth_name=”eth0”
fi

i=0

send_o=`ifconfig $eth_name | grep bytes | awk ‘{print $6}’ | awk -F : ‘{print $2}’`
recv_o=`ifconfig $eth_name | grep bytes | awk ‘{print $2}’ | awk -F : ‘{print $2}’`
send_n=$send_o
recv_n=$recv_o

while [ $i -le 100000 ]; do
send_l=$send_n
recv_l=$recv_n
sleep 1
send_n=`ifconfig $eth_name | grep bytes | awk ‘{print $6}’ | awk -F : ‘{print $2}’`
recv_n=`ifconfig $eth_name | grep bytes | awk ‘{print $2}’ | awk -F : ‘{print $2}’`
i=`expr $i + 1`
send_r=`expr $send_n – $send_l`
recv_r=`expr $recv_n – $recv_l`
total_r=`expr $send_r + $recv_r`

send_ra=$(( ( $send_n – $send_o ) / $i))
recv_ra=$(( ( $recv_n – $recv_o ) / $i))
total_ra=`expr $send_ra + $recv_ra`

sendn=`ifconfig $eth_name | grep bytes | awk -F “(” ‘{print $3}’ | awk -F “)” ‘{print $1}’`
recvn=`ifconfig $eth_name | grep bytes | awk -F “(” ‘{print $2}’ | awk -F “)” ‘{print $1}’`
clear

echo “Last second : Send rate: $send_r Bytes/sec Recv rate: $recv_r Bytes/sec Total rate: $total_r Bytes/sec”
echo “Average value: Send rate: $send_ra Bytes/sec Recv rate: $recv_ra Bytes/sec Total rate: $total_ra Bytes/sec”
echo “Total traffic after startup: Send traffic: $sendn Recv traffic: $recvn”
done

原创文章,作者:赛福,如若转载,请注明出处:https://www.safecdn.cn/624.html