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我看了下，linux下的/proc/net/dev記錄了每塊網(wǎng)卡發(fā)送和接受的包和字節(jié)數(shù)。因此萌生想法，寫了一個。運行效果：

復(fù)制代碼代碼如下:

 
[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(nèi)容如下，幾乎不需要修改，就可以拿到任何機器上去使用了。

復(fù)制代碼代碼如下:

 
[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 

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