How To Install qv4l2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install qv4l2 on Ubuntu 18.04.
What is qv4l2
qv4l2 is:
Qt v4l2 control panel application. You can change all through the v4l2 interface exposed device controls.
There are three methods to install qv4l2 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 qv4l2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install qv4l2 using apt-get by running the following command:
sudo apt-get -y install qv4l2
Install qv4l2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install qv4l2 using apt by running the following command:
sudo apt -y install qv4l2
Install qv4l2 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 qv4l2 using aptitude by running the following command:
sudo aptitude -y install qv4l2
How To Uninstall qv4l2 on Ubuntu 18.04
To uninstall only the qv4l2 package we can use the following command:
sudo apt-get remove qv4l2
Uninstall qv4l2 And Its Dependencies
To uninstall qv4l2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove qv4l2
Remove qv4l2 Configurations and Data
To remove qv4l2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge qv4l2
Remove qv4l2 configuration, data, and all of its dependencies
We can use the following command to remove qv4l2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge qv4l2
References
Summary
In this tutorial we learn how to install qv4l2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
