CentOS7 install Nodejs detailed explanation

first step

• Go to the directory you want to install (in this paper /usr/local/node/under)
• Install gcc, make, openssl, wget (if you have installed it before, you can ignore this operation)

yum install -y gcc make gcc-c++ openssl-devel wget

Second step

• Enter the website to download the node version you want, node download official website
• Execute the following statement to download

wget https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-x64.tar.xz

• The suffix is xz, we use xz to download

xz -d node-v12.16.1-linux-x64.tar.xz 

• Grant permissions and unzip

chmod 777 node-v12.16.1-linux-x64.tar
tar -xvf node-v12.16.1-linux-x64.tar

third step

• View version

cd node-v12.16.1-linux-x64/bin
./node -v

• The version information appears, indicating that the installation was successful.

the fourth step

• Establish a soft connection so that it can be used globally

ln -s /usr/local/node/node-v12.16.1-linux-x64/bin/node /usr/local/bin/node  
ln -s /usr/local/node/node-v12.16.1-linux-x64/bin/npm /usr/local/bin/npm