Uninstall NodeJS from Ubuntu
The command will remove the package but retain the configuration files.
sudo apt-get remove nodejs
sudo apt-get autoremove
To remove both the package and the configuration files run:
sudo apt-get purge nodejs
sudo apt-get autoremove
Install NodeJS on Ubuntu
Adding the NodeJS PPA to Ubuntu
sudo apt-get install software-properties-common
curl -sL https://deb.nodesource.com/setup_11.x | sudo -E bash -
After successfully adding the NodeJS PPA, It’s time now to install NodeJS using the command below.
sudo apt-get install nodejs
Verfiying the version of NodeJS and NPM
node -v
npm -v
More Info: http://www.rscoder.com/2020/04/how-do-i-completely-uninstall-nodejs.html