How to use a "Press any key to continue"?

[coarse_d1rtxxx.2111 0]

I am trying to make a "Press any key to continue" for both Plan9k and OpenOS in OpenComputers.
I need something like:

local term = require("term")
term.clear()
io.write("Page 1 of text\n")
-- system("pause")
term.clear()
io.write("Page 2 of text\n")

but where "system("pause")" is I need to put a Lua function for Plan9k/OpenOS and not a C function for Windows.

[serafim7 0]

local term = require("term")
local event = require("event")
term.clear()
io.write("Page 1 of text\n")
event.pull("key_down")
term.clear()
io.write("Page 2 of text\n")