#!/bin/bash ROOT_UID=0 E_NOTROOT=67 i=0 if [ "$UID" -ne "$ROOT_UID" ]; then echo "Must be root to run this script." exit $E_NOTROOT fi if [ -n "$1" ]; then eth_name=$1 else eth_name="eth0" fi 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 exit 0
先前網上找來的有些錯誤,本身修改了下.在redhat6和centos6測試沒問題centos