Ubuntu

Unix-like operating systems decouple the user name from the user identity, so you may safely change the name without affecting the ID. All permissions, files, etc are tied to your identity (uid), not your username. To manage every aspect of the user database, you use the usermod tool. 1- To change username (it is probably best to do this without ...

The usual advice you get when seeking a more resource conserving distro is to use a lighter spin-off such as Xubuntu, Lubuntu, or a Debian with Openbox, etc. However, not many people know that even a “heavy” distro such as Ubuntu 16.04 LTS with the default Unity Desktop could be made much lighter by uninstalling some stuff and removing others ...