irssi software package provides terminal based IRC client, 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 irssi
irssi is installed in your system.
Make ensure the irssi package were installed using the commands given below,
$ sudo dpkg-query -l | grep irssi *
You will get with irssi package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | irssi |
| Version | 0.8.15-5ubuntu3 |
| Description | terminal based IRC client |
| Sub Section | Net |