Shell script Nic traffic statistics)

#! /Bin/bash

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 = 'expr \ ($ send_n-$ send_o \)/$ I'

Recv_ra = 'expr \ ($ 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 "============================================== =============="

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"

Echo "============================================== =============="

Done