print("WARNING!!! THIS PROGRAM WILL WIPE OUT ALL FILES ON INTERNAL DISK OF THIS COMPUTER!!!")
write("If you are sure that you want to do this, type \"i am sure\": ")
sure = read()

if sure ~= "i am sure" then print("Cancelled") return end

write("Wipe in ")

for i = 5, 0, -1 do
    write(i.."... ")
    sleep(1)
end

print("Wiping out all files...")

for _, object in pairs(fs.list("/")) do
    if not fs.isDriveRoot("/"..object) then
        fs.delete("/"..object)
        print("Wiped "..object)
    end
end

print("Wipe complete, reboot in 3 seconds")
sleep(3)
os.reboot()