The problem with your usage on open is that it can't open a file with newline character in its name.

To be precise, open can open a file with newline characters in its name just fine, as long as they're supported by the filesystem and they do exist. Under *NIX the only forbidden charachters are "\0" and "/".

blazar@perlmonk ~ $ perl -e 'open F, ">foo\nbar" or die'
blazar@perlmonk ~ $ ls foo*
foo?bar
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