Linux manual installation of Node.js
Node.js is a JavaScript running environment based on the Chrome V8 engine. It enables server-side development by allowing JavaScript code to run on the server side. This article explains how to manually install Node.js on Linux.
Preparation before installation
Before installing Node.js, you need to ensure that build-essential and libssl-dev have been installed on the system. You can install it through the following command:
sudo apt-get update sudo apt-get install build-essential libssl-dev
Download Node.js
Open the Node.js official website https://nodejs.org/zh-cn/download/ and select the appropriate version to download. . Here we choose the latest stable version v14.15.5:
wget https://nodejs.org/dist/v14.15.5/node-v14.15.5-linux-x64.tar.xz
Decompress Node.js
After the download is complete, use the following command to decompress the file:
tar -xvf node-v14.15.5-linux-x64.tar.xz
After decompression, we You will get a directory named node-v14.15.5-linux-x64. Rename it to nodejs and move it to the /usr/local/ directory. This can be done using the following command:
sudo mv node-v14.15.5-linux-x64 /usr/local/nodejs
Configure environment variables
In order to facilitate the use of Node.js, It needs to be added to the system environment variables. We can do this by editing the /etc/profile file:
sudo nano /etc/profile
Add the following content at the end of the file:
# Node.js export NODE_HOME=/usr/local/nodejs export PATH=$NODE_HOME/bin:$PATH
Save and exit the file, and then execute the following command to make the changes take effect:
source /etc/profile
Complete installation
Enter the following command to check whether Node.js is successfully installed:
node -v
If the version number of node is output, Node.js has been successfully installed. At this time you can try running some simple JavaScript programs.
If you want to uninstall Node.js, just delete the /usr/local/nodejs directory and the environment variables added before.
Summary
Manually installing Node.js is not complicated. It only requires simple downloading, decompression, and configuration of environment variables. After the installation is complete, you can easily use Node.js for server-side development.
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