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  1. or download this
    my $parameter_value = $query->param('Action') || 'default value';
    
  2. or download this
    perl -e 'print "How sweet does a rose smell? "; chomp $n = <STDIN>; $r
    +ose = "smells sweet to degree $n"; *other_name = *rose; print "$other
    +_name\n"'