rcs software package provides The GNU Revision Control System, 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 rcs
rcs is installed in your system.
Make ensure the rcs package were installed using the commands given below,
$ sudo dpkg-query -l | grep rcs *
You will get with rcs package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | rcs |
| Version | 5.9.2-1 |
| Description | The GNU Revision Control System |
| Sub Section | devel |