centos 7インストール指定バージョンnode

centos 7設置配置nodejs
参照リンクhttps://linuxize.com/post/how-to-install-node-js-on-centos-7/

##          setup_12.x 
curl -sL https://rpm.nodesource.com/setup_12.x | sudo bash -

出力情報をよく読んでください.

[root@master222 wkgithub_eleui]# curl -sL https://rpm.nodesource.com/setup_12.x | sudo bash -

## Installing the NodeSource Node.js 12.x 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_12.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm'

## Downloading release setup RPM...

+ mktemp
+ curl -sL -o '/tmp/tmp.pm7SDJEHAg' 'https://rpm.nodesource.com/pub_12.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm'

## Installing release setup RPM...

+ rpm -i --nosignature --force '/tmp/tmp.pm7SDJEHAg'

## Cleaning up...

+ rm -f '/tmp/tmp.pm7SDJEHAg'

## Checking for existing installations...

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

## Your system appears to already have Node.js installed from an alternative source.
Run `sudo yum remove -y nodejs npm` to remove these first.

## Run `sudo yum install -y nodejs` to install Node.js 12.x 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

正式にnodejsをインストールします

sudo yum install nodejs
##     
node --version

yarnをインストール

## 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