what is this good for

[rstfnk]

lad, I do not know about ubuntu server literally nothing especially in comparison with your knowledge. so basically you wrote some script which I copy between my repositories, then I allow shell to change security settings by following your commands create a new login and ssh key provided by you so you can start using my machine? I am here 1st day, trying to configure and understand ubuntu server a little but I do not think that what you suggesting is right. please correct me if I am wrong. thanks