How To Install node-once on Ubuntu 18.04

In this tutorial we learn how to install node-once on Ubuntu 18.04. node-once is Run a function only once with this module for Node.js

Introduction

In this tutorial we learn how to install node-once on Ubuntu 18.04.

What is node-once

node-once is:

node-once is useful to make sure a listener for multiple events is only run once.

Node.js is an event-based server-side javascript engine.

There are three methods to install node-once 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 node-once Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install node-once

Install node-once Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install node-once

Install node-once 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 node-once using aptitude by running the following command:

sudo aptitude -y install node-once

How To Uninstall node-once on Ubuntu 18.04

To uninstall only the node-once package we can use the following command:

sudo apt-get remove node-once

Uninstall node-once And Its Dependencies

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

sudo apt-get -y autoremove node-once

Remove node-once Configurations and Data

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

sudo apt-get -y purge node-once

Remove node-once configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge node-once

References

Summary

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