How To Install ruby-safe-yaml on Ubuntu 18.04

In this tutorial we learn how to install ruby-safe-yaml on Ubuntu 18.04. ruby-safe-yaml is safer YAML loader for Ruby

Introduction

In this tutorial we learn how to install ruby-safe-yaml on Ubuntu 18.04.

What is ruby-safe-yaml

ruby-safe-yaml is:

SafeYAML provides an alternative implementation of YAML.load suitable for accepting user input in Ruby applications.

Unlike Ruby’s built-in implementation of YAML.load, SafeYAML’s version does not expose applications to arbitrary code execution exploits.

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

sudo apt-get -y install ruby-safe-yaml

Install ruby-safe-yaml Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-safe-yaml

Install ruby-safe-yaml 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 ruby-safe-yaml using aptitude by running the following command:

sudo aptitude -y install ruby-safe-yaml

How To Uninstall ruby-safe-yaml on Ubuntu 18.04

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

sudo apt-get remove ruby-safe-yaml

Uninstall ruby-safe-yaml And Its Dependencies

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

sudo apt-get -y autoremove ruby-safe-yaml

Remove ruby-safe-yaml Configurations and Data

To remove ruby-safe-yaml configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge ruby-safe-yaml

Remove ruby-safe-yaml configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge ruby-safe-yaml

References

Summary

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