Unknown command? Help me :(

I am making a simple MOTD for my server, and all I need is this command to work to finish.

My question is, how can I use a command that is in another lua file in my main lua file.

It says unknown command motd_show. If you need code, just tell me

well whats the code?

Nevermind, I was adding the command before the function, stupid me. Lol