Unrar on Ubuntu 14.04 Trusty LTS Linux
The Linux Tutorial Shows You Step-by-Step How-to Install Unrar and Enable it on Archive Manager for Ubuntu 14.04 Trusty Tahr LTS i386/amd64 GNU/Linux.
RAR is a win.rar proprietary archive file format that supports data compression, error recovery and file spanning.
Open a Command Line Terminal Window
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands)
Installing UnRar for Ubuntu
sudo apt-get install unrar
Then You’ll be able on Desktop to Extract the RAR & Jar Files with a simple Double-Click :)