Difference between $stdout and STDOUT in Ruby
$stdout is a global variable that represents the current standard output. STDOUT is a constant representing standard output and is typically the default value of $stdout. With STDOUT being a constant, you shouldn’t re-define it, however, you can re-define $stdout without errors/warnings (re-defining STDOUT will raise a warning). for example, you can do: Same goes for $stderr and STDERR So, to answer the other part of your question, use the global variables … Read more