在GUI下面,有一大把的工具可以显示网络流量,那么,命令行下面怎么办?显然办法是有的,比如,ifconfig,Linux 查看网络流量会有这样的输出:
RX bytes:1224128649 (1.1 GiB) TX bytes:34114947 (32.5 MiB)。
过一会再看,数值有所变化,两者的差值就是过去一段时间的流量。可是,这也太不人性化了……正所谓自己动手,丰衣足食,我们自己来写一个Linux 查看网络流量脚本,实时显示并刷新!
Linux 查看网络流量脚本如下,还是哪句话,本人功力有限,写脚本的原则是够用就好。
- #!/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 "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
Linux 查看网络流量脚本(假设名叫traffic)默认显示eth0的流量,如果你有多个网卡,请将网卡作为参数传进去,比如:
./traffic eth1
运行结果如下:
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