Checking for redstone

I am trying to make a program that controls a nuclear reactor in tekkit. The problem I am having is that I want it all to be automated and show what is hapening on a monitor.I need a master switch that turns the reactor off and also a thermal monitor that shut off the nuclear reactor for a cool down period. so I want the program to be checking for constanty for 2 redstone signals at once but as I am new to computercraft I dont know how could anybody help??

To have it automated, you could either use CcSensors to monitor the heat, or more simply use a timer for it. You would have to have the program wait for an input from the sensor, and if the heat is above this value, to output a signal to the reactor to shut it off. I've never used CcSensors, but many people have posted examples of what they have done.

I want to be able to see the state of the nuclear reactor on a large monitor. I am using a thermal monitor and a redstone wire in to the nuclear reactor.to shut it off i also have a button to be used as a master shut off switch connected to the computer but I am now getting an error code it is ""bios:206: [string "qwertyu"] :35: '<eof>' expected"" here is my code

print ("Welcome To Nuclear Reactor Monitor")
while true do
os.pullEvent("redstone")
if redstone.getInput("right") then -- master switch
print ("Starting Neuclear Reactor")
redstone.setOutput("back",true) -- on/off of the reactor
else if redstone.getInput("left") then -- thermal monitor
print("Overheat Detected shuting off reactor for cool down perod")
redstone.setOutput("back",false)
sleep(30)
else if redstone.getInput("right") then
print ("Nuclear Reactor OFF")
redstone.setOutput("back",false)
end
end
end
end
end

Why do you have so many ends? Get rid of the ones that aren't necessary.

There should only be a total of two ends in this code.