mdxy-dxy 通过本文主要向大家介绍了shell脚本编程大全,shell脚本视频教程,shell脚本编程入门,shell脚本编程,linux shell脚本等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
实现代码：
#!/bin/bash
eth_in_old=$(ifconfig eth0|grep "RX bytes"|sed 's/RX bytes://'|awk '{print $1}')
eth_out_old=$(ifconfig eth0|grep "RX bytes"|sed 's/.*TX bytes://'|awk '{print $1}')
sleep 1
eth_in_new=$(ifconfig eth0|grep "RX bytes"|sed 's/RX bytes://'|awk '{print $1}')
eth_out_new=$(ifconfig eth0|grep "RX bytes"|sed 's/.*TX bytes://'|awk '{print $1}')
eth_in=$(echo "scale=2;($eth_in_new - $eth_in_old)/1000.0"|bc)
eth_out=$(echo "scale=2;($eth_out_new - $eth_out_old)/1000" | bc)
echo "IN: $eth_in KB"
echo "OUT:$eth_out KB"
</div>
输出：
[root@localhost hbshell]# ./traffic.sh
IN: 1.74 KB
OUT:1.17 KB