This is the output:
:/etc/letsencrypt/live# sudo certbot-auto certonly -n -d slidepipe.com -d www.slidepipe.com
/usr/local/bin/certbot-auto has insecure permissions!
To learn how to fix them, visit Certbot-auto deployment best practices
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Missing command line flags. For non-interactive execution, you will need to specify a plugin on the command line.