1.pull
# 拷贝 /system/etc/start_eth.sh 至 /home/hil/obufile/
adb pull /system/etc/start_eth.sh /home/hil/obufile/2.赋权限
# 重新加载文件系统 实现权限赋予
mount -o rw,remount yaffs2 /3.push
# 拷贝 /home/hil/obufile/start_eth.sh 至 /system/etc/
adb push /home/hil/obufile/start_eth.sh /system/etc/