quickMiner installer

local files = { };
if fs.exists("quickMiner") then
  table.insert(files, "quickMiner")
end
if fs.exists("beacon") then
  table.insert(files, "beacon")
end
 if 0 < #files then
  for _, val in ipairs(files) do
    print(val)
  end
  print(tostring(#files) .. " file(s) exists.")
  print("overwrite? (y/n)")
  local ch = read()
  if ch ~= "y" then
    print("Installation was canceled.")
    return
  end
  for _, val in ipairs(files) do
    fs.delete(val)
  end
end
print("Installing...")
shell.run("pastebin get RjsxGDTF quickMiner")
shell.run("pastebin get hjGie0QG beacon")
print("Installation was completed.")