How To Install ruby-contracts on Kali Linux

Introduction

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

What is ruby-contracts

ruby-contracts is:

This library provides contracts for Ruby. Contracts let you clearly express how your code behaves, and free you from writing tons of boilerplate, defensive code.

There are three methods to install ruby-contracts 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-contracts 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-contracts using apt-get by running the following command:

sudo apt-get -y install ruby-contracts

Install ruby-contracts Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-contracts

Install ruby-contracts 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-contracts using aptitude by running the following command:

sudo aptitude -y install ruby-contracts

How To Uninstall ruby-contracts on Kali Linux

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

sudo apt-get remove ruby-contracts

Uninstall ruby-contracts And Its Dependencies

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

sudo apt-get -y autoremove ruby-contracts

Remove ruby-contracts Configurations and Data

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

sudo apt-get -y purge ruby-contracts

Remove ruby-contracts configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge ruby-contracts

Dependencies

ruby-contracts have the following dependencies:

• ruby

References

• ruby-contracts website

Summary

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