mymod settingstypes.txt and init.lua

-- Snip from my settingstypes.txt file
mymod_allow_command_line (Allow mymod to be accessed via command) bool true
-- End Snip

-- Snip from my init.lua file
local mymod_command_access = minetest.settings:get_bool("mymod_allow_command_line", false)
if mymod_command_access then
    -- Here is where I register a command /mymod_ping
    -- /mymod_ping simply responds with pong in chat
end
-- End Snip