How To Install w3c-markup-validator on Ubuntu 20.04
Introduction
In this tutorial we learn how to install w3c-markup-validator
on Ubuntu 20.04.
What is w3c-markup-validator
w3c-markup-validator is:
The W3C Markup Validator is a CGI script which lets you enter the URL of a web page which will be then checked against a validating SGML parser for conformance to official W3C recommendations. Pages can also be uploaded.
These are the same scripts that are available on the W3C web site, http://validator.w3.org/.
There are three methods to install w3c-markup-validator
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install w3c-markup-validator Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install w3c-markup-validator
using apt-get
by running the following command:
sudo apt-get -y install w3c-markup-validator
Install w3c-markup-validator Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install w3c-markup-validator
using apt
by running the following command:
sudo apt -y install w3c-markup-validator
Install w3c-markup-validator 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 w3c-markup-validator
using aptitude
by running the following command:
sudo aptitude -y install w3c-markup-validator
How To Uninstall w3c-markup-validator on Ubuntu 20.04
To uninstall only the w3c-markup-validator
package we can use the following command:
sudo apt-get remove w3c-markup-validator
Uninstall w3c-markup-validator And Its Dependencies
To uninstall w3c-markup-validator
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove w3c-markup-validator
Remove w3c-markup-validator Configurations and Data
To remove w3c-markup-validator
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge w3c-markup-validator
Remove w3c-markup-validator configuration, data, and all of its dependencies
We can use the following command to remove w3c-markup-validator
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge w3c-markup-validator
References
Summary
In this tutorial we learn how to install w3c-markup-validator
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.