The shelves in our linen closet are loose (pics below).
I plan to fix them by installing angle brackets. One side of the bracket will be on the loose frame, and the other on the wooden frame attached to the wall. My plan (if possible) is to fix it in a simple way (e.g. not needing holes in the drywall), as we don't plan to put a lot of stress on the structure (just linen).
Is this approach sensible? Any other tips or advice?