How To Install yamllint on Ubuntu 20.04

In this tutorial we learn how to install yamllint on Ubuntu 20.04. yamllint is Linter for YAML files

Introduction

In this tutorial we learn how to install yamllint on Ubuntu 20.04.

What is yamllint

yamllint is:

yamllint does not only check for syntax validity, but for weirdnesses like key repetition and cosmetic problems such as lines length, trailing spaces, indentation, etc.

There are three methods to install yamllint 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 yamllint Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

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

sudo apt-get -y install yamllint

Install yamllint Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install yamllint using apt by running the following command:

sudo apt -y install yamllint

Install yamllint 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 yamllint using aptitude by running the following command:

sudo aptitude -y install yamllint

How To Uninstall yamllint on Ubuntu 20.04

To uninstall only the yamllint package we can use the following command:

sudo apt-get remove yamllint

Uninstall yamllint And Its Dependencies

To uninstall yamllint and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove yamllint

Remove yamllint Configurations and Data

To remove yamllint configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge yamllint

Remove yamllint configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge yamllint

References

Summary

In this tutorial we learn how to install yamllint package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.