dorian@carry:~$ sudo ls -l /var/log/letsencrypt/.certbot.lock
total 60
drwxrwxr-x 3 root dorian 4096 Jul 11 16:03 accounts
drwxrwxr-x 2 root dorian 4096 Jul 11 16:03 backups
-rwxrwxr-x 1 root dorian 33844 Jul 11 16:03 letsencrypt.log
-rwxrwxr-x 1 root dorian 774 Jul 11 16:03 options-ssl-nginx.conf
drwxrwxr-x 2 root dorian 4096 Jul 11 16:03 renewal
drwxrwxr-x 5 root dorian 4096 Jul 11 16:03 renewal-hooks
-rwxrwxr-x 1 root dorian 424 Jul 11 16:03 ssl-dhparams.pem
dorian@carry:~$