in reply to Re^2: $^W or require warnings and import warnings;
in thread $^W or require warnings and import warnings;

I get the following results...

C:\Perl\bwb>perl -v

This is perl, v5.8.6 built for MSWin32-x86-multi-thread
(with 3 registered patches, see perl -V for more detail)

...
C:\Perl\bwb>perl 466922.pl
Warnings on:
Use of uninitialized value in concatenation (.) or string at 2.pl line
+ 10.
Warnings off:

[download]

/renz.
"Call on God, but row away from the rocks."
--Hunter S. Thompson.

In Section Seekers of Perl Wisdom