Sorry for my english (i'm rus)

I save MJPEG stream from IP-camera with wget

```
wget -O 2010-01-12_01.mjpeg http://172.16.1.220:8070/video.mjpg

```

I need limit saving by hour (every hour is a another file - 2010-01-12\_[XX])

What is the bast way to do it ?
1) starting and killing by cron ?
2) for .. do in script, how ?
...

thanks for answers