Error: EACCES: permission denied, symlink '../lib/node_modules/n/bin/n' -> '/usr/local/bin/n' code example
Example: npm ERR! Error: EACCES: permission denied, symlink '../lib/node_modules/@angular/cli/bin/ng' -> '/usr/bin/ng'
sudo npm install -g @angular/cli
sudo chown -R $USER /usr/local/lib/node_modules