You have warnings enabled 'the -w switch on shebang'.<br><br>With warnings enabled perl will output a message whenever it detects an undefined value in a join or string interpolation. To demonstrate:<br><br> use warnings;
<br> use strict;<br><br> my $empty = undef;<br> print "Perl will warn about this $empty string.\n";<br><br>I rarely use warnings in production code. It is better to locally scope warnings in code sections where you are certain you must always have data that is not null.
<br><br>Regards,<br><br>-Bill<br><br>