Why not have the subroutine write to STDERR.

Then just redirect STDERR to wherever you want the logged information to go. Either at the top of the main program or via the command line when you run it.

It's kinda what STDERR is for.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re: "Global" filehandle without using global variables by BrowserUk
in thread "Global" filehandle without using global variables by Anonymous Monk

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