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Re: File input-output handle defined or no determination

by jwkrahn (Monsignor)
on Nov 27, 2021 at 02:16 UTC ( #11139161=note: print w/replies, xml ) Need Help??


in reply to File input-output handle defined or no determination

$ perldoc -f fileno fileno FILEHANDLE Returns the file descriptor for a filehandle, or undefined + if the filehandle is not open. If there is no real file descripto +r at the OS level, as can happen with filehandles connected to memo +ry objects via "open" with a reference for the third argument +, -1 is returned.

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