I have Goggled, searched the forum, etc but cannot find a guide on command line commands usefull if you do not want a gui. Help from the command line is not readily understandable and probably not complete. Example.. shutdown only list options not how to implement them. After serveral tries I found that shutdown -P 1, powers off the server 1 min later.
My goal is to setup a smb file server without gui and compare the access speed to my current gui equiped smb server. Afterwards I want to try a webserver and at some point I would like to learn about ftp servers and an asterisk machine, but it all starts with command line experience which over the past 60+ years I have had minimal contact with except for the 6502 proccesor which I had a machine language compiler for. In those days you needed one or just use your computer to play pong which came on a plug in cartridge, but at least you no longer had to punch holes in paper.
Thanks for your advice.

Regards
Ouldefauder