openwrt启用定时器检测断网重连_openwrt检测网络在线

脚本放到root底下：vi my_watchdog.sh

写完添加.sh可执行权限

chmod 777 my_watchdog.sh

#!/bin/sh
#sleep 100
DATE=`date +%Y-%m-%d-%H:%M:%S`
tries=0
echo --- my_watchdog start ---
while [[ $tries -lt 5 ]]
do
        if /bin/ping -c 1 8.8.8.8 >/dev/null
        then
                echo --- exit ---
#               echo $DATE OK >>my_watchdog.log
                exit 0
        fi
        tries=$((tries+1))
        sleep 10
#       echo $DATE tries: $tries >>my_watchdog.log
done
 
echo $DATE network restart >>my_watchdog.log
/etc/init.d/network restart
#echo $DATE reboot >>my_watchdog.log
#reboot1

定时器放/etc/crontabs/root/

*/1 * * * * /root/my_watchdog.sh
 
0 0,4,8,12,16,20 * * * date -u +"%Y.%m.%d-%H:%M:%S" >/usr/data/time_backup
0,1,11,21,31,41,51 * * * * /usr/bin/set_kernel_timezone >/dev/null 2>&1
0 0,4,8,12,16,20 * * * /tmp/bw_backuo/do_bw_backup.sh