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  1. or download this
    my $foo_size = @foo;
    
    print "\nThere are now $foo_size elements in \@foo\n";
    
  2. or download this
    perl -e 'print "How sweet does a rose smell? "; chomp ($n = <STDIN>); 
    +$rose = "smells sweet to degree $n"; *other_name = *rose; print "$oth
    +er_name\n"'