linux下查看主机网卡流量的脚本

linux下查看主机网卡流量的脚本

#!/bin/bash
#network
#Mike.Xu
while : ; do
time=’date +%m”-”%d” “%k”:”%M’
day=’date +%m”-”%d’
rx_before=’ifconfig eth0|sed -n “8″p|awk ‘{print $2}’|cut -c7-’
tx_before=’ifconfig eth0|sed -n “8″p|awk ‘{print $6}’|cut -c7-’
sleep 2
rx_after=’ifconfig eth0|sed -n “8″p|awk ‘{print $2}’|cut -c7-’
tx_after=’ifconfig eth0|sed -n “8″p|awk ‘{print $6}’|cut -c7-’
rx_result=$[(rx_after-rx_before)/256]
tx_result=$[(tx_after-tx_before)/256]
echo “$time Now_In_Speed: “$rx_result”kbps Now_OUt_Speed: “$tx_result”kbps”
sleep 2
done