dbus-daemon is a command-line utility that is part of the D-Bus message bus system. It is used to start a message daemon, which is a process that allows multiple programs to exchange messages with each other.
The D-Bus message bus is a system for inter-process communication (IPC) that allows programs to communicate with each other on a single system or over a network. It is used in many different Linux distributions and is a key component of the desktop environment.
To use dbus-daemon, you will need to specify the options and arguments that you want to use to control the behavior of the message daemon. For example, to start the message daemon with a specific configuration file, you could use the following command:
# dbus-daemon --config-file=/etc/dbus-1/session.conf
This command will start the message daemon with the configuration file located at /etc/dbus-1/session.conf.
If you encounter the below error while running the command dbus-daemon:
dbus-daemon: command not found
you may try installing the below package as per your choice of distribution:
| Distribution | Command |
|---|---|
| Debian | apt-get install dbus-tests |
| Ubuntu | apt-get install dbus-tests |
| Alpine | apk add dbus |
| Arch Linux | pacman -S dbus |
| Kali Linux | apt-get install dbus-tests |
| CentOS | yum install dbus-daemon-1 |
| Fedora | dnf install dbus-daemon-1 |
| OS X | brew install dbus |
| Raspbian | apt-get install dbus-1-dbg |
dbus-daemon Command Examples
1. Run the daemon with a configuration file:
# dbus-daemon --config-file path/to/file
2. Run the daemon with the standard per-login-session message bus configuration:
# dbus-daemon --session
3. Run the daemon with the standard systemwide message bus configuration:
# dbus-daemon --system
4. Set the address to listen on and override the configuration value for it:
# dbus-daemon --address address
5. Output the process ID to stdout:
# dbus-daemon --print-pid
6. Force the message bus to write to the system log for messages:
# dbus-daemon --syslog