Install WeeChat 1.4 on Ubuntu / Linux Mint and Elementary OS

How to : Install WeeChat 1.4 on Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 Willy Werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Ubuntu 13.10/13.04/12.04, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Linux Mint 13 Maya, Pinguy OS 14.04

WeeChat is designed to be light and extensible: a lightweight core with optional plugins.
Plugins and scripts can be dynamically loaded and unloaded at any time.

Almost everything is a plugin, for example:

• Internet Relay Chat (IRC) protocol
• API for script languages (python, perl, ruby, lua, tcl, guile, javascript)
• IRC proxy and remote interface (relay)
• Scripts manager
• Alias, aspell, charset, logger, ...

What News on Version 1.4 ?

Among the new features:

- add a parent name in options, display inherited values if null in /set output
- add option weechat.look.paste_auto_add_newline
- add /fifo command
- track real names using extended-join and WHO (IRC)
- add support of SNI (Server Name Indication) in SSL connection to IRC server
- add support of IRC "cap-notify" capability
- add IRC command /cap
- add hex dump of messages in raw buffer when debug is enabled for irc plugin
- add option relay.irc.backlog_since_last_message
- add option script.scripts.download_timeout
- add scripts to build Debian packages
- many bugs fixed.

How to :  Install WeeChat 1.4 on Ubuntu / Elementary OS / Linux Mint

Install WeeChat 1.4 on Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 Willy Werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Ubuntu 13.10/13.04/12.04, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Linux Mint 13 Maya, Pinguy OS 14.04, and other Ubuntu derivative systems via PPA, open a new Terminal window and bash (get it?) in the following commands :

sudo add-apt-repository ppa:vincent-c/ppa

sudo apt-get update

sudo apt-get install weechat