How to make the script read custom folder in data folder

[Dark8008]

Example: i have a folder call "effectabc" in data/texture/ -> so it is data/texture/effectabc, in this folder it have three small folders, like folder 1, folder 2, folder 3

So it look like 

- data/texture/effectabc/1

- data/texture/effectabc/2

- data/texture/effectabc/3

In folder 1 it has: many .bmp file

In folder 2 it has: many .tga file

In folder 3 it has: many .bmp file 

So you will know they are actually Custom Aura Sprite !

Now i want make a script for the Item can read these folder above to have multi aura ( some server use this way to make Custom Aura System ) 

Thank all and please help !