At a guess, I'd say that when you add the string ">/dev/null", perl has to spawn a shell to make that work,so open returns the PID of that shell process. Without the ">/dev/null", perl probably just does a fork+exec(program).

Again, just a guess.

duff

In reply to Re: Weird open() return code in pipe mode by duff
in thread Weird open() return code in pipe mode by saintmike

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