How To Install elpa-flx on Ubuntu 18.04

In this tutorial we learn how to install elpa-flx on Ubuntu 18.04. elpa-flx is sorting algorithm for fuzzy matching in Emacs

Introduction

In this tutorial we learn how to install elpa-flx on Ubuntu 18.04.

What is elpa-flx

elpa-flx is:

The flx sorting algorithm for Emacs provides fuzzy matching for completion engines like Ido. It is similar to the fuzzy matching functionality of Sublime Text.

The user can input (i) characters from the beginning of the words of the desired match and (ii) substrings of the desired match. For example, when matching “save-all-buffers”, the user could input “sallb”, and when matching “eval-buffer” the user could input “ebuffer”.

The flx sorting algorithm implements an intelligent trade-off between word beginnings and contiguous substrings when ranking possible matches.

There are three methods to install elpa-flx 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 elpa-flx Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install elpa-flx

Install elpa-flx Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install elpa-flx

Install elpa-flx 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 elpa-flx using aptitude by running the following command:

sudo aptitude -y install elpa-flx

How To Uninstall elpa-flx on Ubuntu 18.04

To uninstall only the elpa-flx package we can use the following command:

sudo apt-get remove elpa-flx

Uninstall elpa-flx And Its Dependencies

To uninstall elpa-flx and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove elpa-flx

Remove elpa-flx Configurations and Data

To remove elpa-flx configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge elpa-flx

Remove elpa-flx configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge elpa-flx

References

Summary

In this tutorial we learn how to install elpa-flx package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.