This is my understanding: STDERR is null, so STDOUT is "nulled" too, which makes it no display on screen, I am not very sure about it

No, `` aka qx , captures STDOUT, and since your program does not print the result of qx ( print `...`; ), nothing is displayed

In reply to Re: how does '2>&1' work ? by Anonymous Monk
in thread how does '2>&1' work ? by wildnature

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