While this is actually an interesting question, and I appreciate very much salva's answer, I would say that it's not something that would pop up frequently. Indeed in many years I've never felt the need to find out the open mode of a filehandle: generally you're the person who opens it in the first place and thus you do know how to deal with it. Since you claim to be a newbie, I'd be curious as to know what you need this for. After all this may be an XY Problem...

In reply to Re: How do i determine which mode the file has open ? (write or append mode) by blazar
in thread How do i determine which mode the file has open ? (write or append mode) by loga

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