A couple of ways, (that amount to the same thing), to make it right: 

use constant two => 2;;

printf "two + 2 = %d\n", two + 2;;
two + 2 = 4

sub two () { 2 };;

printf "two + 2 = %d\n", two + 2;;
two + 2 = 4

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In reply to Re: two + 2 not equal 4! by BrowserUk
in thread two + 2 not equal 4! by kp2a

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