How To Install libdlib19 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libdlib19 on Ubuntu 20.04.
What is libdlib19
libdlib19 is:
Dlib is a general purpose cross-platform open source software library written in the C++ programming language. It now contains software components for dealing with networking, threads, graphical interfaces, complex data structures, linear algebra, statistical machine learning, image processing, data mining, XML and text parsing, numerical optimization, Bayesian networks, and numerous other tasks.
There are three methods to install libdlib19 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 libdlib19 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libdlib19 using apt-get by running the following command:
sudo apt-get -y install libdlib19
Install libdlib19 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libdlib19 using apt by running the following command:
sudo apt -y install libdlib19
Install libdlib19 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 libdlib19 using aptitude by running the following command:
sudo aptitude -y install libdlib19
How To Uninstall libdlib19 on Ubuntu 20.04
To uninstall only the libdlib19 package we can use the following command:
sudo apt-get remove libdlib19
Uninstall libdlib19 And Its Dependencies
To uninstall libdlib19 and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libdlib19
Remove libdlib19 Configurations and Data
To remove libdlib19 configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libdlib19
Remove libdlib19 configuration, data, and all of its dependencies
We can use the following command to remove libdlib19 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libdlib19
References
Summary
In this tutorial we learn how to install libdlib19 package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.