How To Install haskell-mode on Debian 9

In this tutorial we learn how to install haskell-mode on Debian 9. haskell-mode is major mode for editing Haskell in Emacs

Introduction

In this tutorial we learn how to install haskell-mode on Debian 9.

What is haskell-mode

haskell-mode is:

A major mode for editing Haskell (the functional programming language) in Emacs.

Major features:

  • syntax highlighting (font lock),
  • automatic indentation,
  • on-the-fly documentation,
  • interaction with inferior ghci or hugs instance,
  • scans declarations and places them in a menu.

There are three methods to install haskell-mode 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 haskell-mode Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install haskell-mode

Install haskell-mode Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install haskell-mode

Install haskell-mode 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 haskell-mode using aptitude by running the following command:

sudo aptitude -y install haskell-mode

How To Uninstall haskell-mode on Debian 9

To uninstall only the haskell-mode package we can use the following command:

sudo apt-get remove haskell-mode

Uninstall haskell-mode And Its Dependencies

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

sudo apt-get -y autoremove haskell-mode

Remove haskell-mode Configurations and Data

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

sudo apt-get -y purge haskell-mode

Remove haskell-mode configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge haskell-mode

Dependencies

haskell-mode have the following dependencies:

References

Summary

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