rhc client is the most powerful and feature-rich command-line client utility, which users can use to work with OpenShift. It is built using Ruby programming language and packaged as a Ruby gem. The
rhc source code is available on GitHub at https://github.com/openshift/rhc.
rhc, you will need to have Ruby 1.8.7 or above installed on your machine. You can check whether Ruby is installed on your machine by running the following command:
$ ruby --version ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
The output of the preceding command will depend on the operating system and Ruby version installed on your machine. If you receive
ruby: command not found, then Ruby ...