1.9.2 GPL (GNU General Public License)    
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A message bus system that provides a simple way for applications to talk to one another

editor's review




D-Bus is an open source and free command-line software implemented in C, a non-interactive daemon that acts as a message bus system. It is heavily used in modern Linux distributions to allow applications to talk to one another.

This message bus system has been engineered in such a way that helps you coordinate process lifecycle, by making it reliable and simple to write a daemon or a "single instance" application.

It can handles different events

The project is comprised of a system daemon that takes care of events like "printer queue changed" or "new hardware device added," and a per-user-login-session daemon, which is mostly used for general IPC tasks.

Various re-implementations of the D-Bus protocol were created during the past several years, for languages like Java, Ruby, and C#. However, they don't use the libdbus reference implementation.

Getting started with D-Bus

The software is written entirely in the C programming language. To install and use it in your GNU/Linux operating system, you must first download the latest source code from Softpedia, where it’s distributed as a tar archive, save it on your computer and extract its contents.

Open a terminal emulator, using the ‘cd’ command navigate to the location of the extracted archive files, and run the ‘make’ command to compile the source code. Then, use the ‘make install’ command, as root or with sudo in front of it, to install D-Bus system wide.

Running the ‘dbus-daemon --help’ command will display the program’s command-line options at a glance. Among these, we can mention support for specifying a configuration file, support for systemd, the ability to run it without a PID file, as well as fork and nofork support.

D-Bus was reviewed by Marius Nestor
Last updated on November 13th, 2014
D-Bus - The help message of the D-Bus daemon, as viewed from the Linux Terminal

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