Apologies for the simplicity of the question as I am a novice with R.

I have a large number of 1-minute audio files, with 1 minute recorded every 5 minutes. I need them organised by hour and saved to a new folder, so every 12 files need to be saved to a new folder. I have 7472 of these files so doing this manually would take too long.

Here is an example of the file names:

```
20210111_000500.wav,
20210111_001000.wav,
20210111_001500.wav,
20210111_002000.wav,
20210111_002500.wav,
20210111_003000.wav,
20210111_003500.wav,
20210111_004000.wav,
20210111_004500.wav,
20210111_005000.wav,
20210111_005500.wav,

```

which I want to all be in one folder, with the next hour starting as
`20210111_010000.wav` and so on.

How would I go about doing this?

Any help is much appreciated, thank you!