❯ sudo npm cache clean -f
npm WARN using --force I sure hope you know what you are doing.
❯ sudo npm install -g n
/usr/local/bin/n -> /usr/local/lib/node_modules/n/bin/n
/usr/local/lib
└── n@6.3.1 

❯ sudo n stable

  installing : node-v12.16.1
       mkdir : /usr/local/n/versions/node/12.16.1
       fetch : https://nodejs.org/dist/v12.16.1/node-v12.16.1-linux-x64.tar.xz
   installed : v12.16.1 (with npm 6.13.4)

Note: the node command changed location and the old location may be remembered in your current shell.
         old : /usr/bin/node
         new : /usr/local/bin/node
To reset the command location hash either start a new shell, or execute PATH="$PATH"

❯ node
Welcome to Node.js v12.16.1.
>