npm ERR! Error: EACCES: permission denied, symlink '../lib/node_modules/grunt-cli/bin/grunt' -> '/usr/local/bin/grunt' code example

Example: npm EACCES: permission denied, access '/usr/local/lib'

sudo chown -R $(whoami) ~/.npm

mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
export PATH=~/.npm-global/bin:$PATH
source ~/.profile