sudo apt-get install nodejs

sudo apt-get install npm

check version

node -v

npm -v

get/set npm mirror website

npm config get registry

npm config set registry https://registry.npm./

clean npm cache

npm cache clean -f

install n module

npm install -g n    # n be used to mange node

upgrade newest node

n stable

uninstall

sudo apt-get remove --purge npm

sudo apt-get remove --purge nodejs

sudo apt-get remove --purge nodejs-legacy

sudo apt-get autoremove

rm -r /tmp/npm*