root@mumumuinfo:~ # certbot revoke --cert-path /usr/local/etc/letsencrypt/live/sima.bar/cert.pem
Saving debug log to /var/log/letsencrypt/letsencrypt.log

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Would you like to delete the certificate(s) you just revoked, along with all
earlier and later versions of the certificate?
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(Y)es (recommended)/(N)o: y

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The following certificate(s) are selected for deletion:

  * sima.bar

WARNING: Before continuing, ensure that the listed certificates are not being
used by any installed server software (e.g. Apache, nginx, mail servers).
Deleting a certificate that is still being used will cause the server software
to stop working. See https://certbot.org/deleting-certs for information on
deleting certificates safely.

Are you sure you want to delete the above certificate(s)?
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(Y)es/(N)o: y
Deleted all files relating to certificate sima.bar.
Congratulations! You have successfully revoked the certificate that was located at /usr/local/etc/letsencrypt/live/sima.bar/cert.pem.
root@mumumuinfo:~ #