How to Update and Manage Node.js version with n on CentOS 7.6

Installing, Updating and Managing Node.js with n

Pre-requisites:

Gcc-c++ and make

Download link :

curl -sL https://rpm.nodesource.com/setup_8.x | sudo -E bash –

Installation procedure of node.js

Install the development tools that are required to install the node.js.

[root@linuxhelp ~]# yum install -y gcc-c++ make
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
Package 1:make-3.82-23.el7.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package gcc-c++.x86_64 0:4.8.5-36.el7_6.2 will be installed
--> Processing Dependency: libstdc++-devel = 4.8.5-36.el7_6.2 for package: gcc-c++-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: libstdc++ = 4.8.5-36.el7_6.2 for package: gcc-c++-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: gcc = 4.8.5-36.el7_6.2 for package: gcc-c++-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: libmpc.so.3()(64bit) for package: gcc-c++-4.8.5-36.el7_6.2.x86_64
--> Running transaction check
---> Package gcc.x86_64 0:4.8.5-36.el7_6.2 will be installed
--> Processing Dependency: libgomp = 4.8.5-36.el7_6.2 for package: gcc-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: cpp = 4.8.5-36.el7_6.2 for package: gcc-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: libgcc >= 4.8.5-36.el7_6.2 for package: gcc-4.8.5-36.el7_6.2.x86_64
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc-4.8.5-36.el7_6.2.x86_64
---> Package libmpc.x86_64 0:1.0.1-3.el7 will be installed
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Dependency Installed:
  cpp.x86_64 0:4.8.5-36.el7_6.2                  gcc.x86_64 0:4.8.5-36.el7_6.2                    glibc-devel.x86_64 0:2.17-260.el7_6.5     
  glibc-headers.x86_64 0:2.17-260.el7_6.5        kernel-headers.x86_64 0:3.10.0-957.12.2.el7      libmpc.x86_64 0:1.0.1-3.el7               
  libstdc++-devel.x86_64 0:4.8.5-36.el7_6.2     

Dependency Updated:
  glibc.x86_64 0:2.17-260.el7_6.5              glibc-common.x86_64 0:2.17-260.el7_6.5            libgcc.x86_64 0:4.8.5-36.el7_6.2           
  libgomp.x86_64 0:4.8.5-36.el7_6.2            libstdc++.x86_64 0:4.8.5-36.el7_6.2              

Complete!

Add node.js yum repository and enable it in your system.

[root@linuxhelp ~]# curl -sL https://rpm.nodesource.com/setup_8.x | sudo -E bash -

## Installing the NodeSource Node.js 8.x LTS Carbon repo...


## Inspecting system...

+ rpm -q --whatprovides redhat-release || rpm -q --whatprovides centos-release || rpm -q --whatprovides cloudlinux-release || rpm -q --whatprovides sl-release
+ uname -m

## Confirming "el7-x86_64" is supported...

+ curl -sLf -o /dev/null 'https://rpm.nodesource.com/pub_8.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm'

## Downloading release setup RPM...

+ mktemp
+ curl -sL -o '/tmp/tmp.2IYZWXWcQM' 'https://rpm.nodesource.com/pub_8.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm'

## Installing release setup RPM...

+ rpm -i --nosignature --force '/tmp/tmp.2IYZWXWcQM'

## Cleaning up...

+ rm -f '/tmp/tmp.2IYZWXWcQM'

## Checking for existing installations...

+ rpm -qa 'node|npm' | grep -v nodesource

## Run `sudo yum install -y nodejs` to install Node.js 8.x LTS Carbon and npm.
## You may also need development tools to build native addons:
     sudo yum install gcc-c++ make
## To install the Yarn package manager, run:
     curl -sL https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo
     sudo yum install yarn

After the addition of yum repository to the system, install node.js package where npm will aslo be installed with node.js.

[root@linuxhelp ~]# yum install nodejs
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: centos.excellmedia.net
 * extras: centos.excellmedia.net
 * updates: centos.excellmedia.net
nodesource                                                                                                           | 2.5 kB  00:00:00     
nodesource/x86_64/primary_db                                                                                         |  46 kB  00:00:01     
Resolving Dependencies
--> Running transaction check
---> Package nodejs.x86_64 2:8.16.0-1nodesource will be installed
--> Finished Dependency Resolution
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Warning: RPMDB altered outside of yum.
  Installing : 2:nodejs-8.16.0-1nodesource.x86_64                                                                                       1/1 
  Verifying  : 2:nodejs-8.16.0-1nodesource.x86_64                                                                                       1/1 

Installed:
  nodejs.x86_64 2:8.16.0-1nodesource                                                                                                        

Complete!

Check the version of node by running the following command

[root@linuxhelp ~]# node -v
v8.16.0

Check the version of npm by executing the following command.

[root@linuxhelp ~]# npm -v
6.4.1

You shall upgrade the node version by running the following command.

Install the node version manager n as follows

[root@linuxhelp ~]# npm install -g n
/usr/bin/n -> /usr/lib/node_modules/n/bin/n
+ n@4.1.0
added 1 package from 4 contributors in 0.758s

Upgrade the node version via n which installs a new version of a node under a folder managed by itself.

[root@linuxhelp ~]# n lts

     install : node-v10.15.3
       mkdir : /usr/local/n/versions/node/10.15.3
       fetch : https://nodejs.org/dist/v10.15.3/node-v10.15.3-linux-x64.tar.gz
######################################################################## 100.0%
   installed : v10.15.3

Check the version of node after the upgrading it.

[root@linuxhelp ~]# node -v
v8.16.0

Execute the command to know the system path

[root@linuxhelp ~]# n bin 10.15.3
/usr/local/n/versions/node/10.15.3/bin/node

Alter the system path in /etc/profile as follows:

[root@linuxhelp ~]# vim /etc/profile
# nodejs PATH
export NODE_HOME=/usr/local/n/versions/node/10.15.3/bin/node
export PATH=$NODE_HOME/bin:$PATH

Reset the profile by executing the following command

[root@linuxhelp ~]# source /etc/profile

Now,check the version of node.

[root@linuxhelp ~]# node -v
v10.15.3

Select the version of node that you want to keep by executing the following command

[root@linuxhelp ~]# n 10.15.3

Run the below command to remove the irrelevant packages in the version.

[root@linuxhelp ~]# n prune

With this, the method to install, upgrade and manage node.js using n on Centos 7.6 comes to end.