统计网卡流量的两段shell脚本(使用ifconfig)
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2023-11-19 14:44:16
使用shell脚本计算linux网卡流量,方法中最关键点:
复制代码 代码如下:
ifconfig $eth_name | grep bytes | awk '...
使用shell脚本计算linux网卡流量,方法中最关键点:
复制代码 代码如下:
ifconfig $eth_name | grep bytes | awk '{print $6}' | awk -f : '{print $2}'
通过ifconfig eth0|grep bytes 得到输入输出的流量。
复制代码 代码如下:
/@rac2=>dd2$ifconfig eth0|grep bytes
rx bytes:1638005313300 (1.4 tib) tx bytes:3408060482049 (3.0 tib)
再将结果通过awk 得出所要的字段值。
固定时间得到这些值,在写个循环计算一下就能得到网卡流量。
完整代码:
代码一:
#!/bin/bash # 统计网卡流量 # link:www.jb51.net # date:2013/2/26 n=10 date rm -rf /tmp/ifconfig_log while (( $n >= 0 )) do n=$(($n - 1)); date >> /tmp/ifconfig_log ifconfig eth1 >> /tmp/ifconfig_log sleep 1 done grep "rx bytes:" /tmp/ifconfig_log | awk -f"[:| ]" '{print $13}' | awk 'begin{tmp=$1}{if(fnr > 1)print $1-tmp}{tmp=$1}'
代码二:
#!/bin/bash if [ -n "$1" ]; then eth_name=$1 else eth_name="eth0" fi i=0 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 "==================================================" 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" echo "==================================================" done
代码三:
#!/bin/bash # link: www.51bbo.com ### while : do time=`date +%f” “%t.%n` rx_before=`ifconfig eth0 |sed -n 8p |awk ‘{print $2}'| cut -c7-` tx_before=`ifconfig eth0 |sed -n 8p |awk ‘{print $6}'| cut -c7-` sleep 2 rx_after=`ifconfig eth0 |sed -n 8p |awk ‘{print $2}'| cut -c7-` tx_after=`ifconfig eth0 |sed -n 8p |awk ‘{print $6}'| cut -c7-` rx_result=$[(rx_after – rx_before)/512] tx_result=$[(tx_after – tx_before)/512] echo -e “$time nnow_in_speed: ‘$rx_result'kbps now_out_speed: ‘$tx_result'kbpsn” done
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