To run LetsDNS in a BASH compatible shell, you can use the commands below. LetsDNS does not require root privileges. Read access to the configuration files and certificates suffices. The system account of your ACME client is usually a good choice.

letsdns /etc/letsdns/myconf.ini

One or more configuration files are required to run LetsDNS. If your shell supports wildcard expansion, you can use this to launch LetsDNS with a variable number of arguments:

letsdns /etc/letsdns/*.ini

This BASH example invokes LetsDNS with all matching files. It allows you to place additional configuration files into the /etc/letsdns directory if the number of domains changes. These files might even be dynamically generated during certificate retrieval.