How To Install qt5-gtk2-platformtheme on Ubuntu

Posted on April 1, 2023 (Last modified on May 20, 2023 )

2 minutes • 375 words

Introduction

In this tutorial we learn how to install qt5-gtk2-platformtheme on Ubuntu.

What is `qt5-gtk2-platformtheme`

qt5-gtk2-platformtheme is:

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

This package contains the GTK+ 2 style and platform theme. Export QT_QPA_PLATFORMTHEME=gtk2 to enable it for all Qt applications.

There are three methods to install qt5-gtk2-platformtheme on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install qt5-gtk2-platformtheme Using apt-get

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

sudo apt-get update

After updating apt database, We can install qt5-gtk2-platformtheme using apt-get by running the following command:

sudo apt-get -y install qt5-gtk2-platformtheme

Install qt5-gtk2-platformtheme Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install qt5-gtk2-platformtheme using apt by running the following command:

sudo apt -y install qt5-gtk2-platformtheme

Install qt5-gtk2-platformtheme 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 qt5-gtk2-platformtheme using aptitude by running the following command:

sudo aptitude -y install qt5-gtk2-platformtheme

How To Uninstall qt5-gtk2-platformtheme on Ubuntu

To uninstall only the qt5-gtk2-platformtheme package we can use the following command:

sudo apt-get remove qt5-gtk2-platformtheme

Uninstall qt5-gtk2-platformtheme And Its Dependencies

To uninstall qt5-gtk2-platformtheme and its dependencies that are no longer needed by Ubuntu, we can use the command below:

sudo apt-get -y autoremove qt5-gtk2-platformtheme

Remove qt5-gtk2-platformtheme Configurations and Data

To remove qt5-gtk2-platformtheme configuration and data from Ubuntu we can use the following command:

sudo apt-get -y purge qt5-gtk2-platformtheme

Remove qt5-gtk2-platformtheme configuration, data, and all of its dependencies

We can use the following command to remove qt5-gtk2-platformtheme configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge qt5-gtk2-platformtheme

Dependencies

qt5-gtk2-platformtheme have the following dependencies:

References

qt5-gtk2-platformtheme website

Summary

In this tutorial we learn how to install qt5-gtk2-platformtheme package on Ubuntu using different package management tools: apt, apt-get and aptitude.