No. An unassigned variable contains the special value undef. This will evaluate as false under some circumstances. 0 (and, indeed, '0') also evaluates as false, which is where the confusion arises.
--
<http://www.dave.org.uk>
European Perl Conference - Sept 22/24 2000
<http://www.yapc.org/Europe/>
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Now how does it know to print on the next line ? do we specify anything or it just does it ?
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Suggest you re-visit the String scalars section. The \n is a newline character to be printed. Thus after each value, a newline is printed (CR/LF) so the next print will start on a new line
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