linux下怎么監控網絡流量

本篇內容主要講解“linux下怎么監控網絡流量”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強。下面就讓小編來帶大家學習“linux下怎么監控網絡流量”吧!

我看了下，linux下的/proc/net/dev記錄了每塊網卡發送和接受的包和字節數。因此萌生想法，寫了一個。運行效果：

代碼如下:

[root@74-82-173-217 ~]# ./net.sh
Current Ip: inet addr:74.82.173.217 Bcast:74.82.173.223 Mask:255.255.255.224
Summry info: RX bytes:203692709 (194.2 MiB) TX bytes:93525930 (89.1 MiB)
eth0 Receive Bytes: 573 Packets: 3
eth0 Send Bytes: 3086 Packets: 3
eth0 Receive Bytes: 378 Packets: 7
eth0 Send Bytes: 11236 Packets: 7
eth0 Receive Bytes: 324 Packets: 6
eth0 Send Bytes: 444 Packets: 2
eth0 Receive Bytes: 54 Packets: 1
eth0 Send Bytes: 0 Packets: 0

具體腳本的內容如下，幾乎不需要修改，就可以拿到任何機器上去使用了。

代碼如下:

[root@74-82-173-217 ~]# cat net.sh
#! /bin/bash
#Author: Vogts WangTao 2008-12-18
#Get summry info
echo "Current Ip: "`/sbin/ifconfig eth0 | grep inet`
echo "Summry info: "`/sbin/ifconfig eth0 | grep bytes`
#sleep 1 second ,monitor eth0
while true
do
receive1=`cat /proc/net/dev|grep eth0 | awk '{print$1}'|sed -s 's/eth0://g'`
receive_pack1=`cat /proc/net/dev|grep eth0 | awk '{print$2}'`
send1=`cat /proc/net/dev|grep eth0 | awk '{print$9}'`
send_pack1=`cat /proc/net/dev|grep eth0 | awk '{print$10}'`
sleep 1
receive2=`cat /proc/net/dev|grep eth0 | awk '{print$1}'|sed -s 's/eth0://g'`
receive_pack2=`cat /proc/net/dev|grep eth0 | awk '{print$2}'`
receive_cnt=`expr $receive2 - $receive1`
receive_pack_cnt=`expr $receive_pack2 - $receive_pack1`
send2=`cat /proc/net/dev|grep eth0 | awk '{print$9}'`
send_pack2=`cat /proc/net/dev|grep eth0 | awk '{print$10}'`
send_cnt=`expr $send2 - $send1`
send_pack_cnt=`expr $send_pack2 - $send_pack1`
echo 'eth0 Receive Bytes:' $receive_cnt ' Packets:' $receive_pack_cnt
echo 'eth0 Send Bytes:' $send_cnt ' Packets:' $send_pack_cnt
done

到此，相信大家對“linux下怎么監控網絡流量”有了更深的了解，不妨來實際操作一番吧！這里是億速云網站，更多相關內容可以進入相關頻道進行查詢，關注我們，繼續學習！