How To Install ruby-rails-observers on Kali Linux

Introduction

In this tutorial we learn how to install ruby-rails-observers on Kali Linux.

What is ruby-rails-observers

ruby-rails-observers is:

This package contains two observers: Active Record Observer and Action Controller Sweeper.

Active Record Observer classes respond to life cycle callbacks to implement trigger-like behavior outside the original class. This is a great way to reduce the clutter that normally comes when the model class is burdened with functionality that doesn’t pertain to the core responsibility of the class.

Active Record Sweepers are the terminators of the caching world and responsible for expiring caches when model objects change. They do this by being half-observers, half-filters and implementing callbacks for both roles.

There are three methods to install ruby-rails-observers on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ruby-rails-observers Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install ruby-rails-observers

Install ruby-rails-observers Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ruby-rails-observers using apt by running the following command:

sudo apt -y install ruby-rails-observers

Install ruby-rails-observers Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install ruby-rails-observers using aptitude by running the following command:

sudo aptitude -y install ruby-rails-observers

How To Uninstall ruby-rails-observers on Kali Linux

To uninstall only the ruby-rails-observers package we can use the following command:

sudo apt-get remove ruby-rails-observers

Uninstall ruby-rails-observers And Its Dependencies

To uninstall ruby-rails-observers and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove ruby-rails-observers

Remove ruby-rails-observers Configurations and Data

To remove ruby-rails-observers configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge ruby-rails-observers

Remove ruby-rails-observers configuration, data, and all of its dependencies

We can use the following command to remove ruby-rails-observers configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ruby-rails-observers

Dependencies

ruby-rails-observers have the following dependencies:

• ruby
• ruby-activemodel

References

• ruby-rails-observers website

Summary

In this tutorial we learn how to install ruby-rails-observers package on Kali Linux using different package management tools: apt, apt-get and aptitude.