I've got a simple crontab for ripping my local radio station only when I want:

```
0 16 * * 0 /root/streamripper.sh
0 17 * * 0 killall streamripper
0 20 * * 0 /root/streamripper.sh
0 21 * * 0 killall streamripper

```

and it's not working. Also, this is the content of streamripper.sh:

```
#!/bin/sh
streamripper http://some.radio.com/stream.aac -s -o never -d /some/secret/directory

```

Thanks :)