shell$ perl -e 'my $input = <>; chomp($input);if (length($input)) { print q(length) }; if (defined($input)) { print q(defined) }; #### if($decision eq "to be"){print "Romeo is"} else{print "Romeo is not"} #### $dec eq "to be" ? print "Romeo is" : print "Romeo is not"; #### shell$ perl -e 'my $input=<>; chomp $input; print q(Romeo ); $input ? print q(is ) : print q(is not ); print qq(\ntaking ),length($input),qq( hours to decide!\n); #### shell$ perl -e 'my $input; # not yet defined print q(Romeo ); #test for the scalar to be not defined to be true !defined $input ? print q(undefined ) : $input ? print q(is ) : print q(is not ); print qq(\n taking ),length($input),qq( hours to decide!\n);