How To Install ruby-whitewash on Ubuntu 18.04

In this tutorial we learn how to install ruby-whitewash on Ubuntu 18.04. ruby-whitewash is Whitelist-based HTML filter for Ruby

Introduction

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

What is ruby-whitewash

ruby-whitewash is:

This module allows Ruby programs to clean up any HTML document or fragment coming from an untrusted source and to remove all dangerous constructs that could be used for cross-site scripting or request forgery.

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

sudo apt-get -y install ruby-whitewash

Install ruby-whitewash Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-whitewash

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

sudo aptitude -y install ruby-whitewash

How To Uninstall ruby-whitewash on Ubuntu 18.04

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

sudo apt-get remove ruby-whitewash

Uninstall ruby-whitewash And Its Dependencies

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

sudo apt-get -y autoremove ruby-whitewash

Remove ruby-whitewash Configurations and Data

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

sudo apt-get -y purge ruby-whitewash

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

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

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

References

Summary

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