SHELL 获取网卡流量

SHELL 获取网卡流量

1. 版本一

#!/bin/bash

#使用方法
usage()
{
  echo "useage: $0 ethname intervel"
  exit 0
}

#网口配置
if [ $# -gt 1 ];then
  ethname=$1
  num=`ifconfig|grep ${ethname}|wc -l`
  if [ $num -gt 0 ];then
   ethname=$1
  else
    echo "Can't find $ethname,Please Check"
    exit 1
  fi
fi

#时间配置
intervel=1
if [ $# -gt 0 ]; then
  interval=$2
  test=`expr "$interval" \* 0`
  if [ "$test" != "0" ]; then 
        echo "Invalid <interval> param '$interval' . It should be a integer number. Usage: $0 ethname intervel"
        exit -1  
  fi
  if [ $interval -lt 1 ]; then
        echo "Invalid <interval> param '$interval' . It should be > 0 (seconds). Usage: $0 ethname intervel"
        exit -1
  fi
fi

#函数判断
if [ $# -ne 2 ]
then
 usage
fi

echo "$0 is starting,Device is $1,Intervel is $2"
echo -e "\n"

typeset Rev old_Rev

eth=$1
intervel=$2

old_Rev=`cat /proc/net/dev|grep $eth| awk '{print $1}'| awk -F : '{print $2}'`
old_Send=`cat /proc/net/dev|grep $eth|awk '{print $9}'`
#echo "old_Rev is $old_Rev"
#echo "Old_send is $old_Send"

while true
 do
 sleep $intervel

 Rev=`cat /proc/net/dev|grep $eth|awk '{print $1}'|awk -F : '{print $2}'`
 Send=`cat /proc/net/dev|grep $eth|awk '{print $9}'`
#echo "Rev is $Rev"
#echo "Send is $Send"

 diff_1=`awk -v Rev=$Rev -v old_Rev=$old_Rev -v intervel=$intervel 'BEGIN{printf "Receive is %6.2f", ( Rev - old_Rev ) / 1024 / 1024 / intervel * 8}'`

 diff_2=`awk -v Send=$Send -v old_Send=$old_Send -v intervel=$intervel 'BEGIN{printf "Send is %6.2f", ( Send - old_Send ) / 1024 / 1024 / intervel * 8}'` 

 echo "`date +'%Y-%m-%d %H:%M:%S'` Speed: IN ${diff_1} mbps OUT ${diff_2} mbps"

 old_Rev=$Rev
 old_Send=$Send
done

2. 版本二

#!/bin/bash
#network
#by rocdk890
while : ; do
      time=`date +%m"-"%d" "%k":"%M`
      day=`date +%m"-"%d`
      port=`ifconfig |grep em|awk '{print $1}'`
      rx_before=`ifconfig $port|sed -n "8"p|awk '{print $2}'|cut -c7-`
      tx_before=`ifconfig $port|sed -n "8"p|awk '{print $6}'|cut -c7-`
      sleep 2
      rx_after=`ifconfig $port|sed -n "8"p|awk '{print $2}'|cut -c7-`
      tx_after=`ifconfig $port|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