How to set a hollow cuboid (or get a list with the blocks / locations in it)

[iiBlake]

hello, I am trying to make a block that makes a hollow cube around it from one location to another. I know how to set blocks and all, but i have no idea how I could get a hollow cube. Any help is appreciated! Thanks in advance!

[Animefan8888]

Yse three nested for loops. All going from -radius to +radius. And check if x, y, z is = to -radius or +radius.

[iiBlake]

Got this sorted out! Thanks for helping!