How To Install ruby-sanitize on Ubuntu 18.04

In this tutorial we learn how to install ruby-sanitize on Ubuntu 18.04. ruby-sanitize is whitelist-based HTML sanitizer

Introduction

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

What is ruby-sanitize

ruby-sanitize is:

Sanitize is a whitelist-based HTML sanitizer. Given a list of acceptable elements and attributes, Sanitize will remove all unacceptable HTML from a string.

Using a simple configuration syntax, you can tell Sanitize to allow certain elements, certain attributes within those elements, and even certain URL protocols within attributes that contain URLs. Any HTML elements or attributes that you don’t explicitly allow will be removed.

Because it’s based on Nokogiri, a full-fledged HTML parser, rather than a bunch of fragile regular expressions, Sanitize has no trouble dealing with malformed or maliciously-formed HTML and returning safe output.

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

sudo apt-get -y install ruby-sanitize

Install ruby-sanitize Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-sanitize

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

sudo aptitude -y install ruby-sanitize

How To Uninstall ruby-sanitize on Ubuntu 18.04

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

sudo apt-get remove ruby-sanitize

Uninstall ruby-sanitize And Its Dependencies

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

sudo apt-get -y autoremove ruby-sanitize

Remove ruby-sanitize Configurations and Data

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

sudo apt-get -y purge ruby-sanitize

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

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

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

References

Summary

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