How To Install why on Ubuntu 18.04
Introduction
In this tutorial we learn how to install why on Ubuntu 18.04.
What is why
why is:
This package contains Krakatoa and Jessie, two front-ends of the Why3 platform for deductive program verification. Krakatoa deals with Java programs annotated in a variant of the The Java Modeling Language. Jessie deals with C programs annotated in the ANSI/ISO C Specification Language (ACSL).
There are three methods to install why 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 why Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install why using apt-get by running the following command:
sudo apt-get -y install why
Install why Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install why using apt by running the following command:
sudo apt -y install why
Install why 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 why using aptitude by running the following command:
sudo aptitude -y install why
How To Uninstall why on Ubuntu 18.04
To uninstall only the why package we can use the following command:
sudo apt-get remove why
Uninstall why And Its Dependencies
To uninstall why and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove why
Remove why Configurations and Data
To remove why configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge why
Remove why configuration, data, and all of its dependencies
We can use the following command to remove why configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge why
References
Summary
In this tutorial we learn how to install why package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
