Nut.util.include

nut.util.include(fileName, state) This function does the following: The optional argument "state" determines whether your file is server-side, client-side, or shared. It will automatically be determined from the fileName's prefix if not provided.
 * Executes the specified file
 * Sends it to the client if it's a client-side script
 * if your prefix is "sh_" it will be assumed your state is "shared"
 * if your prefix is "sv_" it will be assumed your state is "server"
 * if your prefix is "cl_" it will be assumed your state is "client"

Arguments

 * String fileName
 * String state

Return Values

 * If your state is client and the file you include is client-side, the varargs from include will be returned.
 * If your state is server and the file you include is server-side, the varargs from include will be returned.

Examples
nut.util.include("core/sh_config.lua")