WhyCan Forum(哇酷开发者社区)

#!/bin/sh

while [ 1 ]; do

    success=0
    for site in www.qq.com www.163.com www.baidu.com www.taobao.com; do
        if ping -c 1 -s 4 -t 32 "$site" > /dev/null 2>&1; then
            echo `date +"%Y-%m-%d %H:%M:%S"` "$site is reachable." >> /tmp/network_status.log
            success=1
            break
        else
            echo `date +"%Y-%m-%d %H:%M:%S"` "$site is not reachable." >> /tmp/network_status.log
        fi
    done

    if [ $success -eq 1 ]; then
        echo `date +"%Y-%m-%d %H:%M:%S"` "网络连接成功" >> /tmp/network_status.log
    else
        echo `date +"%Y-%m-%d %H:%M:%S"` "网络连接失败，请检查您的网络设置" >> /tmp/network_status.log
        killall udhcpc &
        wpa_cli -i wlan0 reconnect
        udhcpc -i wlan0 &
    fi

    sleep 5

done;