(CentOS7/Linux) create-react-app

# echo 'export PATH="$(yarn global bin):$PATH"' >> ~/.bashrc

(or) - # npm install -g create-react-app

(or) - # yarn global add create-react-app

# create-react-app <패키지명>

# cd <패키지명>

(or) - # PORT=80 npm start

(or) - # PORT=80 yarn start