Close...It's tough for me to explain and even tougher for me to figure it out! It's more like this...

1. Rotate files from dir/main to dir_1 next 5 minutes. 
2. Rotate files from dir/main to dir_2 next 5 minutes. 
3. Rotate files from dir/main to dir_3 next 5 minutes.  
4. start at 1. again (loop)
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