How To Install libqtcore4 on Debian 9

In this tutorial we learn how to install libqtcore4 on Debian 9. libqtcore4 is Qt 4 core module

Introduction

In this tutorial we learn how to install libqtcore4 on Debian 9.

What is libqtcore4

libqtcore4 is:

Qt is a cross-platform C++ application framework. Qt’s primary feature is its rich set of widgets that provide standard GUI functionality.

The QtCore module contains core non-GUI functionality.

There are three methods to install libqtcore4 on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libqtcore4 Using apt-get

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

sudo apt-get update

After updating apt database, We can install libqtcore4 using apt-get by running the following command:

sudo apt-get -y install libqtcore4

Install libqtcore4 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libqtcore4 using apt by running the following command:

sudo apt -y install libqtcore4

Install libqtcore4 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 Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install libqtcore4 using aptitude by running the following command:

sudo aptitude -y install libqtcore4

How To Uninstall libqtcore4 on Debian 9

To uninstall only the libqtcore4 package we can use the following command:

sudo apt-get remove libqtcore4

Uninstall libqtcore4 And Its Dependencies

To uninstall libqtcore4 and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove libqtcore4

Remove libqtcore4 Configurations and Data

To remove libqtcore4 configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge libqtcore4

Remove libqtcore4 configuration, data, and all of its dependencies

We can use the following command to remove libqtcore4 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libqtcore4

Dependencies

libqtcore4 have the following dependencies:

References

Summary

In this tutorial we learn how to install libqtcore4 package on Debian 9 using different package management tools: apt, apt-get and aptitude.