curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh -o install_nvm.sh
nano install_nvm.sh
bash install_nvm.sh
source ~/.profile
nvm ls-remote
nvm install 8.11.1 # 버전 선택
nvm use 8.11.1
node -v # 버전 확인
nvm ls
nvm alias default 8.11.1
nvm use default