pp
ppを使うとプリティプリントができます。
require 'pp' a = { "Bobby" => 19, "Elvis" => 19, "Grimm" => 19, "Fredy" => 19, "Haris" => 13, "David" => 13, } b = { "Alice" => 13, "Chris" => 16, } people = [ a, b ] p people pp people
実行結果です。デフォルトでは幅が79でプリティプリントするとのこと。
[{"Grimm"=>19, "David"=>13, "Fredy"=>19, "Elvis"=>19, "Bobby"=>19, "Haris"=>13}, {"Alice"=>13, "Chris"=>16}] [{"Grimm"=>19, "David"=>13, "Fredy"=>19, "Elvis"=>19, "Bobby"=>19, "Haris"=>13}, {"Alice"=>13, "Chris"=>16}]