io.popen is nil on Windows 10?

[jorm]

Nevermind; I found https://forum.rainmeter.net/viewtopic.php?p=153631&hilit=io.popen#p153595
I'm leaving the question for reference.

I'm trying to use io.popen to ping a host.
The line is:

Code: Select all

local p = io.popen('ping -n 1 -w 1 ' .. addr_lan)

with addr_lan being an ip address, of course.
The error messag in the log is:

Code: Select all

Script: Ping2Hosts.lua:21: attempt to call field 'popen' (a nil value)

As far as I read, io.popen should be defined under Windows 10. Could that be a missing library or binding?

(I used os.execute before, but that flashed a command window every time, which was annoying.)

Any other way to get a ping result, without flashing windows?
Thanks in advance.

[SilverAzide]

This is documented in the Rainmeter manual: https://docs.rainmeter.net/manual/lua-scripting/#Restrictions