VER=$(curl -Ls nodejs.org | grep "Current Version:" | sed -e 's|Current Version: ||' -e 's/<[^>]\+>//g' -e 's| *||')
wget https://nodejs.org/dist/${VER}/node-${VER}-linux-x64.tar.gz
mkdir -p /opt/node-src
tar zxf node-${VER}-linux-x64.tar.gz -C /opt/node-src/
rm -f node-${VER}-linux-x64.tar.gz
if [ ! -f /opt/node-src/current ]; then ln -s /opt/node-src/node-${VER}-linux-x64 /opt/node-src/current ; else ln -s /opt/node-src/node-${VER}-linux-x64 /opt/node-src/next ; fi
chown -R root:root /opt/node-src
ln -s /opt/node-src/current/bin/node /usr/local/bin/node
ln -s /opt/node-src/current/bin/npm /usr/local/bin/npm