racket software package provides extensible programming language in the Scheme family, 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 racket
racket is installed in your system.
Make ensure the racket package were installed using the commands given below,
$ sudo dpkg-query -l | grep racket *
You will get with racket package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Lisp |
| Package | racket |
| Version | 5.3.6+dfsg1-1 |
| Description | extensible programming language in the Scheme family |
| Sub Section | Lisp |