How to install NPM

npm 설치 방법

$ sudo yum install epel-release
$ sudo yum install npm nodejs
$ sudo yum install npm

solve “Error: Package: 1:nodejs-6.11.1-1.el7.x86_64 (epel)”

$ sudo rpm -ivh https://kojipkgs.fedoraproject.org//packages/http-parser/2.7.1/3.el7/x86_64/http-parser-2.7.1-3.el7.x86_64.rpm && yum -y install nodejs