OpenShell installer

background = colors.gray
shellcolor = colors.green
logocolor = colors.orange
term.setTextColor(colors.orange)
term.setBackgroundColor(colors.gray)
shell.run("clear")
y = 1
function out(string)
  term.setCursorPos(1,y)
  write(string)
  y = y + 1
  if y >= 19 then
    shell.run("clear")
    y = 1
  end
  term.setCursorPos(1,y)
end
out("OpenShell")
term.setTextColor(colors.green)
out("//$: Installing")
if fs.exists("startup") then
  fs.delete("startup")
end
local file = fs.open("startup","w")
local data = http.get("https://www.dropbox.com/s/qwliuarg3y4z1ep/startup?dl=1")
file.write(data.readAll())
file.close()
out("//$: Install has completed.")
sleep(2)
os.reboot()