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Terminal screen size detection which works on Linux, OS X and Windows/Cygwin platforms and supports MRI, JRuby and Rubinius interpreters.

TTY::Screen provides independent screen size detection component for TTY toolkit.


Add this line to your application's Gemfile:

gem 'tty-screen'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tty-screen

1. Usage

TTY::Screen allows you to detect terminal screen size by calling size method which returns [height, width] tuple.

screen =

screen.size     # => [51, 280]
screen.width    # => 280
screen.height   # => 51

You can also use above methods as class instance methods:

TTY::Screen.size     # => [51, 280]
TTY::Screen.width    # => 280
TTY::Screen.height   # => 51


  1. Fork it ([my-github-username]/tty-screen/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request


Copyright (c) 2014-2016 Piotr Murach. See LICENSE for further details.