How to turn off $stdout and $stderr in Ruby

Question

Is it possible to turn off $stdout and $stderr and not re-direct it to a file; just turn it off so it prints out nothing to anywhere?

I've already tried the following code, but it just errors with error: Invalid argument

$stderr = IO.new(0,"w")
$stdout = IO.new(0,"w")

*"so it prints out nothing to anywhere"* - printing everything to [nowhere](https://en.wikipedia.org/wiki/Null_device) is probably easier ;-) — Stefan, Jul 13 '15 at 12:57

score 5 · Accepted Answer · edited May 23 '17 at 11:58

5

This gist will show you how to redirect to /dev/null:

Or this SO answer:

Your question probably needs to be marked as a dup.

edited May 23 '17 at 11:58

Community

answered Jul 13 '15 at 12:24

Michael Chaney

I see, I didn't understand what `"/dev/null"` was so I thought it was irrelevant and therefore not related to this question, thanks! – Thermatix Jul 13 '15 at 13:02
2

Links are secondary to a solution. Please provide some code and explanation inline with SO. – wurde Jul 13 '15 at 13:11
His question should have been marked as a dup. Note that one of the links is to SO. – Michael Chaney Jul 13 '15 at 15:32
1

And for portability reasons `IO::NULL` should be used instead of plain `"/dev/null"`. – cremno Jul 13 '15 at 15:34

1 Answers1