How to Make an Operating System - ComputerCraft Tutorial 1

Let's start with a basic menu! v FIX v

I made a slight mistake in the code for the display function marked by comments on line 71 and 73 in the pastebin below.
http://pastebin.com/ASViy4rD

Thanks to TheBeastlySolution for this:
FIX FOR COMMAND COMING UNALIGNED: where you printCenter the Command line, add a space AFTER ' or "Command"'
line should look like: printCentered(math.floor(h / 2) + 0, ((nOption == 1 and "[ Command ]") or "Command "))

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