TruthhOrrDaree

Hello all, i am making an elevator and have read this forum post, i would much apreciat if someone coul tell me the comands and how to enter them into computer craft? all i need is the comands to make the elevator go up untill it hits some redstone wire, i have a redstone torch hanging of the side and i want the leveator to stop each time it hits a redtone wire, i have a computer inside the elevator and 1 that is also linked up to the frames, can somone please help me with the coding?