dbus software package provides simple interprocess messaging system (daemon and utilities), 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 dbus
dbus is installed in your system.
Make ensure the dbus package were installed using the commands given below,
$ sudo dpkg-query -l | grep dbus *
You will get with dbus package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | dbus |
| Version | 1.6.18-0ubuntu4.4 [amd64, i386 |
| Description | simple interprocess messaging system (daemon and utilities) |
| Sub Section | devel |