I'm working on a system where I'd like the first letter of each filename to be random - not necessarily *unique*, just random. I'd like to be able to run this from a cron job.

For example, I would be able to point it at a list of files like

```
song.mp3    song1.mp3    song2.mp3
song3.mp3   song4.mp3    song5.mp3

```

And have it change the names of the files to something like this:

```
a song.mp3    g song1.mp3    k song2.mp3
r song3.mp3   l song4.mp3    e song5.mp3

```

Is there a way to do this?