How To Install libqt4-help on Debian 9

In this tutorial we learn how to install libqt4-help on Debian 9. libqt4-help is Qt 4 help module

Introduction

In this tutorial we learn how to install libqt4-help on Debian 9.

What is libqt4-help

libqt4-help 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 QtHelp module provides classes for integrating online documentation in applications.

There are three methods to install libqt4-help 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 libqt4-help Using apt-get

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

sudo apt-get update

After updating apt database, We can install libqt4-help using apt-get by running the following command:

sudo apt-get -y install libqt4-help

Install libqt4-help Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libqt4-help using apt by running the following command:

sudo apt -y install libqt4-help

Install libqt4-help 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 libqt4-help using aptitude by running the following command:

sudo aptitude -y install libqt4-help

How To Uninstall libqt4-help on Debian 9

To uninstall only the libqt4-help package we can use the following command:

sudo apt-get remove libqt4-help

Uninstall libqt4-help And Its Dependencies

To uninstall libqt4-help and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove libqt4-help

Remove libqt4-help Configurations and Data

To remove libqt4-help configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge libqt4-help

Remove libqt4-help configuration, data, and all of its dependencies

We can use the following command to remove libqt4-help configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libqt4-help

Dependencies

libqt4-help have the following dependencies:

References

Summary

In this tutorial we learn how to install libqt4-help package on Debian 9 using different package management tools: apt, apt-get and aptitude.