ruby-actionpack software package provides Controller and View framework used by Rails, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ruby-actionpack
ruby-actionpack is installed in your system.
Make ensure the ruby-actionpack package were installed using the commands given below,
$ sudo dpkg-query -l | grep ruby-actionpack *
You will get with ruby-actionpack package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Ruby |
| Package | ruby-actionpack |
| Version | 2:3.2.13+1 |
| Description | Controller and View framework used by Rails |
| Sub Section | Ruby |