How to install nodejs using compressed package

Node.js is a JavaScript running environment based on the Chrome V8 engine. It allows JavaScript to run on the server side and is generally used to build highly scalable web applications. There are many ways to install Node.js, one of which is to use a compressed package. This article will describe in detail how to install Node.js using a compressed package.

1. Download the Node.js compressed package

Before installation, you need to download the Node.js compressed package from the Node.js official website https://nodejs.org/. Choose the version that suits you. It is generally recommended to choose the LTS (Long-Term Support) version. After the download is completed, you can use the following command to view the downloaded file location:

cd ~/Downloads
ls

You can see the downloaded compressed package file name, such as node-v14.18.0-linux-x64.tar.xz. Before installation, you need to unzip the package.

2. Decompress the Node.js compressed package

Extract the downloaded compressed package to the specified directory, such as /usr/local/. Enter the following command in Terminal:

sudo tar -xvf node-v14.18.0-linux-x64.tar.xz -C /usr/local/

Among them, the -C parameter indicates the specified decompression directory, and /usr/local/ is the directory we specified. The process may require an administrator password. After decompression is complete, you can check whether there are two files, node and npm, in the decompression directory:

cd /usr/local/
ls -l node-v14.18.0-linux-x64/

You can see two files, node and npm, indicating that Node.js has been successfully installed.

3. Configure Node.js environment variables

Although Node.js has been installed, you still need to configure environment variables when using it so that you can use node and npm commands directly. Environment variables can be edited with the following command:

sudo nano /etc/profile

Add the following content at the end of the file:

export NODE_HOME=/usr/local/node-v14.18.0-linux-x64
export PATH=$NODE_HOME/bin:$PATH

Save and exit. At this time, you also need to use the source command to make the file effective immediately:

source /etc/profile

4. Test the Node.js installation

After the installation is completed, you can test to confirm whether Node.js is successfully installed. Enter the following command in Terminal:

node -v

You can see the output Node.js version number, such as v14.18.0, which means Node.js has been installed successfully. Similarly, you can also test whether npm is installed successfully:

npm -v

Output the version number of npm, such as 6.14.15, which means npm has also been installed successfully.

The above are all the steps to install Node.js using a compressed package. Although compared to other installation methods, it takes some time to install using a compressed package, but it also has the advantage that you can freely choose the installation path and do not require administrator rights. After the installation is complete, we can start using Node.js to build applications and enjoy the convenience and efficiency it brings.

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