How To Install entr on Ubuntu 22.04

In this tutorial we learn how to install entr on Ubuntu 22.04. entr is Run arbitrary commands when files change

Introduction

In this tutorial we learn how to install entr on Ubuntu 22.04.

What is entr

entr is:

The Event Notify Test Runner (entr) runs arbitrary commands when files change. Changes are detected through the kqueue/inotify kernel interface.

There are three methods to install entr on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install entr Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install entr

Install entr Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install entr

Install entr 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 entr using aptitude by running the following command:

sudo aptitude -y install entr

How To Uninstall entr on Ubuntu 22.04

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

sudo apt-get remove entr

Uninstall entr And Its Dependencies

To uninstall entr and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove entr

Remove entr Configurations and Data

To remove entr configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge entr

Remove entr configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge entr

References

Summary

In this tutorial we learn how to install entr package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.