car failed mot both brake hoses are shot. looks simple enough to do. but I'm just wondering what wondering best way to do this without getting air into abs. what is the correct proceedur efor this job?

Upon replacing them you will have to bleed it as the new one is not a sealed unit filled with fluid.

Undo it and replace then bleed is all you can do, the faster you replace it the less mess you'll make

Bleeding procedure start furthest nipple away from M/C then work you way in coming to closest last, make sure they have no air in before locking them off