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coolian

How do i check if stdin exists?

Question

how do i check that stdin exists?

at the moment i try to do it like so

if io.stdin ~= nil then
	-- read stdin
end

however i get the error "attempt to index a nil value (field 'stdin')"

how is this even possible if im checking if it is nil?

i am using this in an attempt to recreate the 'tee' tool from linux

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