How To Install libldl2 on Ubuntu 18.04

In this tutorial we learn how to install libldl2 on Ubuntu 18.04. libldl2 is simple LDL factorization library for sparse matrices

Introduction

In this tutorial we learn how to install libldl2 on Ubuntu 18.04.

What is libldl2

libldl2 is:

Suitesparse is a collection of libraries for computations involving sparse matrices.

The LDL library provides routines for sparse LDL’ factorization and solving. These routines are not terrifically fast (they do not use dense matrix kernels), but the code is very short and concise. The purpose is to illustrate the algorithms in a very concise and readable manner, primarily for educational purposes.

There are three methods to install libldl2 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 libldl2 Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install libldl2 using apt-get by running the following command:

sudo apt-get -y install libldl2

Install libldl2 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libldl2 using apt by running the following command:

sudo apt -y install libldl2

Install libldl2 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 libldl2 using aptitude by running the following command:

sudo aptitude -y install libldl2

How To Uninstall libldl2 on Ubuntu 18.04

To uninstall only the libldl2 package we can use the following command:

sudo apt-get remove libldl2

Uninstall libldl2 And Its Dependencies

To uninstall libldl2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libldl2

Remove libldl2 Configurations and Data

To remove libldl2 configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libldl2

Remove libldl2 configuration, data, and all of its dependencies

We can use the following command to remove libldl2 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libldl2

References

Summary

In this tutorial we learn how to install libldl2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.