| A temporary directory is created to not mess around with the current installation. The certbot server has to be reachable. The command output is visible in the certbot output. |
COMMAND='id'
TF=$(mktemp -d)
sudo certbot certonly --standalone -n --dry-run -d example.net --work-dir $TF --config-dir $TF --agree-tos --register-unsafely-without-email --pre-hook "$COMMAND"
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