How To Install libdaemon-doc on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libdaemon-doc on Ubuntu 20.04.
What is libdaemon-doc
libdaemon-doc is:
libdaemon is a lightweight C library which eases the writing of UNIX daemons. It consists of the following parts:
- Wrapper around fork() for correct daemonization of a process
- Wrapper around syslog() for simple log output to syslog or STDERR
- An API for writing PID files
- An API for serializing signals into a pipe for use with select() or poll()
- An API for running subprocesses with STDOUT and STDERR redirected to syslog
Routines like these are included in most of the daemon software available. It is not simple to get these done right and code duplication is not acceptable.
This package contains the API documentation of the library.
There are three methods to install libdaemon-doc on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libdaemon-doc Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libdaemon-doc using apt-get by running the following command:
sudo apt-get -y install libdaemon-doc
Install libdaemon-doc Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libdaemon-doc using apt by running the following command:
sudo apt -y install libdaemon-doc
Install libdaemon-doc Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libdaemon-doc using aptitude by running the following command:
sudo aptitude -y install libdaemon-doc
How To Uninstall libdaemon-doc on Ubuntu 20.04
To uninstall only the libdaemon-doc package we can use the following command:
sudo apt-get remove libdaemon-doc
Uninstall libdaemon-doc And Its Dependencies
To uninstall libdaemon-doc and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libdaemon-doc
Remove libdaemon-doc Configurations and Data
To remove libdaemon-doc configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libdaemon-doc
Remove libdaemon-doc configuration, data, and all of its dependencies
We can use the following command to remove libdaemon-doc configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libdaemon-doc
References
Summary
In this tutorial we learn how to install libdaemon-doc package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.