Variable ruby

name = "Mostafa Kamal"
_age = 54

AgeKamal = 21

name1, name2 = 'kamal', 'jamal'

@insVar = 'This is instance variable'

@@classVar = "This is class variable"

$globalVar = "This is global variable"

=begin
 self , true, false, nil, __FILE__, __LINE__
=end

puts name
puts "he is #{AgeKamal} and #{age}"

name = gets
name = gets.chomp