shell脚本监控linux网卡流量(上传/下载/流入/流出)

来源：互联网发布：算法统宗下载编辑：程序博客网时间：2024/05/16 02:15

从网上找的一个脚本, diy了一下, 觉得很OK, ~_~

#!/bin/sh

#filename: monitor_eth_flow.v2.sh    #功能: 监控网卡进出流量#用法: #   sh monitor_eth_flow.v2.sh#   sh monitor_eth_flow.v2.sh eth0#   sh monitor_eth_flow.v2.sh eth0 1 #function calcFlow(){before=$1after=$2seconds=$3title=$4if [ -z "$before" ]; then  before=0  fi  if [ -z "$after" ]; then  after=0  fi  if [ $after -ge $before ]  then    diffentvalue=$((($after-$before)/$seconds));  else    diffentvalue=$((($after+4*1024*1024*1024-$before)/$seconds));  fi  diffentvalue=${diffentvalue#-}  if [ $diffentvalue -ge 1073741824 ]; then   resultend=$(($diffentvalue/1073741824));   unit=GB/s;  elif [ $diffentvalue -ge 1048576 ]; then   resultend=$(($diffentvalue/1048576));   unit=MB/s;  elif [ $diffentvalue -ge 1024 ]; then   resultend=$(($diffentvalue/1024));   unit=KB/s;  else   resultend=$diffentvalue ;   unit=B/s;  fiecho "$title $resultend$unit" }#监控网卡名, eth0/eth1/loif [ "-$1" = "-" ] ;then    eth="eth0" #默认eth0else    eth=$1fi#监控时长if [ "-$2" = "-" ] ;then    sleep_seconds=5 #默认5秒else    sleep_seconds=$2fiecho "网卡 $eth 流量计算中, 请等待$sleep_seconds秒钟......(Ctrl+C停止)"; echo "";while((1==1)); doresultIn=$(ifconfig $eth | grep -e 'RX bytes'|awk '{print $2}'|awk -F':' '{print $2}');resultOut=$(ifconfig $eth | grep -e 'RX bytes'|awk '{print $6}'|awk -F':' '{print $2}');sleep $sleep_seconds;resultIn2=$(ifconfig $eth | grep -e 'RX bytes'|awk '{print $2}'|awk -F':' '{print $2}');  resultOut2=$(ifconfig $eth | grep -e 'RX bytes'|awk '{print $6}'|awk -F':' '{print $2}');echo $(date +'%Y-%m-%d %H:%M:%S')calcFlow $resultIn  $resultIn2  $sleep_seconds  "下载流量(进): ";calcFlow $resultOut $resultOut2 $sleep_seconds  "上传流量(出):"; echo "";done

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