shop

textutils.slowPrint ("Hello, and Welcome to this power shop that still   doesn't have a name!",40)
sleep(1)
textutils.slowPrint ("From this very computer you can either refill or   purchase your own energy cell.",40)
sleep(1)
textutils.slowPrint ("So which of these would you like to do?",40)
write ("Refill or Purchase?  ")
x = io.read()

if x == "Refill" then
shell.run("fill")
else
if x == "refill" then
shell.run("fill")
else
if x == "Purchase" then
shell.run("purchase")
else
if x == "purchase" then
shell.run("purchase")
end
end
end
end
os.shutdown()