分享两个Linux系统中监控网络流量的脚本

    作者:课课家教育更新于: 2016-02-18 14:42:11

      在我们的日常工作当中,监控网络要么使用iptarf,ifstat这些命令实现的,但是需要装额外的RPM包。特别是iptarf装起来麻烦,而Linux下的/proc/NET/dev记录了每块网卡发送和接受的包和字节数。因此萌生想法,写了一个。运行效果:

    分享两个Linux系统中监控网络流量的脚本_Linux脚本_Linux系统_Linux_课课家

      [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

      具体脚本的内容如下,课课家可以保证,这几乎不需要修改,就可以拿到任何机器上去使用了。

      [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

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