install_node.sh

cat > install_node.sh <<EOF
#!/bin/sh
sudo apt-get install -y nodejs npm
sudo npm cache clean
sudo npm install n -g
sudo n stable
sudo ln -sf /usr/local/bin/node /usr/bin/node
sudo ln -sf /usr/local/bin/npm /usr/bin/npm
sudo apt-get purge -y nodejs npm
EOF

chmod 755 install_node.sh
./install_node.sh