Temp widget: the reason to use "find" command

[kdrobnyh]

I looked into your code and have a question: why do you query the temperature sensors in the system if you can just read from the specified file if it exists?

[lcpz]

Your question can be answered by reading the wiki. I will try to elaborate here as well.

Which is the specified file? Different OSs may use different locations and file names for the temperature file(s).

That's why I find them all.

If you want to just cat a file you know it exists on your computer, you can use a watch:

local bitcoin = awful.widget.watch(
    "cat '/sys/devices/virtual/thermal/thermal_zone0/temp'", -- TODO modify accordingly
    30, -- poll asynchronously every 30 seconds
    function(widget, stdout)
        local text = stdout -- TODO process here
        widget:set_markup(text)
    end
)