Quick steps to upgrade:
Check current installed nodejs version.
[[email protected]]# node -v
Force clean cache.
[[email protected]]# npm cache clean -f
Install n module globally.
[[email protected]]# npm install -g n
Install latest and stable node using n.
[[email protected]]# n stable
install : node-v8.4.0
mkdir : /usr/local/n/versions/node/8.4.0
fetch : https://nodejs.org/dist/v8.4.0/node-v8.4.0-linux-x64.tar.gz
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installed : v8.4.0
Symlink above new node path to /usr/bin/node.
[[email protected]]# ln -sf /usr/local/n/versions/node/8.4.0/bin/node /usr/bin/node
Recheck installed node version to verify successfull installation.
[[email protected]]# node -v