perlquestion princepawn The following simple subroutine: <code> sub log_msg { my $log_msg = shift; print "value $script::debug"; if ($script::debug) { print sprintf "(%s) $log_msg \n", shell_date; } } </code> still prints log messages when the <b>printed</b> value of $script::debug is 0. <p> So this yields two questions, and I would like an answer to both: <li>What are all the false values in Perl? I know of the following: <ol> <li> "0" <li> "" <li> 0 <li>0.0 </ol> <li>How do one brute-force print every character in a string even if it is typically unprintable? That is, my guess is that things are being printed even when $script::debug <b> appears</b> to be zero when in fact there may be some hidden control char or something in the string.