How to Install Yarn on Ubuntu Linux

How to install and use Yarn on Ubuntu Linux

As described above, Yarn is a fast, reliable, and secure JavaScript dependency manager that automates installing, updating, configuring, and managing npm packages.

Below is how to install it on Ubuntu Linux.

Add Yarn APT Repository

Before installing Yarn, you should first install its package repository.

You’ll first need to add the repository’s GPG key to authenticate packages being installed from there. Run the commands below to add the Yarn repository’s GPG key to Ubuntu.

sudo apt update
sudo apt install curl
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -

Next, run the commands below to add the repository

echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

That’s all you need to install Yarn.

After that, run the commands below to install Yarn

sudo apt update
sudo apt install yarn

If you already have Node.js installed, simply run the commands below to install Yarn, but skip Node.js packages and dependencies.

sudo apt install --no-install-recommends yarn

Verify Yarn is Installed

To verify if Yarn is installed, run the commands below to print out the version number installed on your system.

yarn --version

The output should be something similar to the line below:

1.10.1

Now that you have Yarn installed on your Ubuntu system,  here are some of the most common commands you’ll need.

To create a new Yarn project, use the yarn init command as shown below:

yarn init myproject

The init script will ask you several questions. You can either answer or press to use the default values.

yarn init v1.10.1
question name (richard): 
question version (1.0.0): 
question description: 
question entry point (index.js): 
question repository url: 
question author: 
question license (MIT): 
question private: 
success Saved package.json
Done in 13.40s.

After that, the script will create a basic package.json file containing the information you provided above.

Upgrading dependencies

If you want to upgrade dependencies, simply run the commands below for each package and version you want to upgrade or update.

yarn upgrade
yarn upgrade [package_name]
yarn upgrade [package_name]@[version_or_tag]

If you do not provide a package name, Yarn will update all the project dependencies.

For more about using Yarn, check this page.

Conclusion:

This post showed you how to install Yarn on Ubuntu 20.04 | 18.04. If you find any error above, please use the comment form below to report.