TTY::Which Gitter

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Platform independent implementation of Unix which utility that searches for executable file in the path variable.

TTY::Which provides cross-platform executables search component for TTY toolkit.


Add this line to your application's Gemfile:

gem 'tty-which'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tty-which


TTY::Which has which method that searches the path for executable file.

When the path to executable exists, an absolute path is returned, otherwise nil.

For example, to find location for a single executable do:

TTY::Which.which('less')  # => '/usr/bin/less'
TTY::Which.which('git')   # => 'C:\Program Files\Git\bin\git'

You can also check an absolute path to executable:

TTY::Which.which('/usr/bin/ruby')  # => '/usr/bin/ruby'

The exist? returns true if the executable exists in the path and false otherwise:

TTY::Which.exist?('ruby') # => true


  1. Fork it ( )
  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) 2015-2016 Piotr Murach. See LICENSE for further details.