I recently installed Take Command with Lua. I am new to Lua but have been using 4Dos, 4Nt, and Take Command since the mid-1980s. I have never used Lua, but I like what I see. My question is how do I share information, data, between Lua code and Take Command code? I have found os.getenv to get information from my operating system environment table. But I have not found a corresponding setenv or putenv. It seems to me that I can share information from Take Command to Lua script, but I cannot see how to get information back from Lua script to my original batch script. I am probably missing something obvious, but if someone can give me some guidance I will appreciate it.