linux 网卡流量监控脚本

原创
2016/07/26 16:15
阅读数 107
#!/bin/bash PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export PATH function traffic_monitor { # 系统版本 OS_NAME=$(sed -n '1p' /etc/issue) # 网口名 eth=$1 #判断网卡存在与否,不存在则退出 if [ ! -d /sys/class/net/$eth ];then echo -e "Network-Interface Not Found" echo -e "You system have network-interface:\n`ls /sys/class/net`" exit 5 fi while [ "1" ] do # 状态 STATUS="fine" # 获取当前时刻网口接收与发送的流量 RXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $2}') TXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $10}') # 获取1秒后网口接收与发送的流量 sleep 1 RXnext=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $2}') TXnext=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $10}') clear # 获取这1秒钟实际的进出流量 RX=$((${RXnext}-${RXpre})) TX=$((${TXnext}-${TXpre})) # 判断接收流量如果大于MB数量级则显示MB单位,否则显示KB数量级 if [[ $RX -lt 1024 ]];then RX="${RX}B/s" elif [[ $RX -gt 1048576 ]];then RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}') $STATUS="busy" else RX=$(echo $RX | awk '{print $1/1024 "KB/s"}') fi # 判断发送流量如果大于MB数量级则显示MB单位,否则显示KB数量级 if [[ $TX -lt 1024 ]];then TX="${TX}B/s" elif [[ $TX -gt 1048576 ]];then TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}') else TX=$(echo $TX | awk '{print $1/1024 "KB/s"}') fi # 打印信息 echo -e "===================================" echo -e "Welcome to Traffic_Monitor stage" echo -e "version 1.0" echo -e "Since 2014.2.26" echo -e "Created by showerlee" echo -e "BLOG: http://www.showerlee.com" echo -e "===================================" echo -e "System: $OS_NAME" echo -e "Date: `date +%F`" echo -e "Time: `date +%k:%M:%S`" echo -e "Port: $1" echo -e "Status: $STATUS" echo -e " \t RX \tTX" echo "------------------------------" # 打印实时流量 echo -e "$eth \t $RX $TX " echo "------------------------------" # 退出信息 echo -e "Press 'Ctrl+C' to exit" done } # 判断执行参数 if [[ -n "$1" ]];then # 执行函数 traffic_monitor $1 else echo -e "None parameter,please add system netport after run the script! \nExample: 'sh traffic_monitor eth0'" fi
展开阅读全文
打赏
0
1 收藏
分享
加载中
更多评论
打赏
0 评论
1 收藏
0
分享
返回顶部
顶部