How To Install libflann1.9 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libflann1.9 on Ubuntu 18.04.
What is libflann1.9
libflann1.9 is:
FLANN is a library for performing fast approximate nearest neighbor searches in high dimensional spaces. It contains a collection of algorithms found to work best for nearest neighbor search and a system for automatically choosing the best algorithm and optimum parameters depending on the dataset.
This package contains the libraries needed to run FLANN applications.
There are three methods to install libflann1.9 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libflann1.9 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libflann1.9 using apt-get by running the following command:
sudo apt-get -y install libflann1.9
Install libflann1.9 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libflann1.9 using apt by running the following command:
sudo apt -y install libflann1.9
Install libflann1.9 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 libflann1.9 using aptitude by running the following command:
sudo aptitude -y install libflann1.9
How To Uninstall libflann1.9 on Ubuntu 18.04
To uninstall only the libflann1.9 package we can use the following command:
sudo apt-get remove libflann1.9
Uninstall libflann1.9 And Its Dependencies
To uninstall libflann1.9 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libflann1.9
Remove libflann1.9 Configurations and Data
To remove libflann1.9 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libflann1.9
Remove libflann1.9 configuration, data, and all of its dependencies
We can use the following command to remove libflann1.9 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libflann1.9
References
Summary
In this tutorial we learn how to install libflann1.9 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
