How To Install doctest on Ubuntu 20.04

In this tutorial we learn how to install doctest on Ubuntu 20.04. doctest is test interactive Haskell examples; executable

Introduction

In this tutorial we learn how to install doctest on Ubuntu 20.04.

What is doctest

doctest is:

The doctest program checks examples in source code comments. It is modeled after doctest for Python (http://docs.python.org/library/doctest.html).

Documentation is at https://github.com/sol/doctest-haskell#readme.

This package contains the doctest executable.

There are three methods to install doctest on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install doctest Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install doctest

Install doctest Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install doctest

Install doctest 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 doctest using aptitude by running the following command:

sudo aptitude -y install doctest

How To Uninstall doctest on Ubuntu 20.04

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

sudo apt-get remove doctest

Uninstall doctest And Its Dependencies

To uninstall doctest and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove doctest

Remove doctest Configurations and Data

To remove doctest configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge doctest

Remove doctest configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge doctest

References

Summary

In this tutorial we learn how to install doctest package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.