Creating a new user in Linux or Unix is typically done with the adduser command. The basic syntax is:
adduser -g [group] -n [username]
where group is the group (admin, scanners, cups, vboxusrs, etc...) that you want the new user to be part of, and username is the name that they log in with. You will need either root access, or be part of the "sudoers"group in Ubuntu.
i don't think you can
su command is used to change the user.
To create a new user account under any Linux distribution use command called useradd. The system administrator is responsible for creating account. Login as root user (or use sudo command).
One root account
A user doesn't directly create processes themselves, instead processes are created anytime a program is run. So, short, but not entirely accurate answer: Do ANYTHING on Linux and you'll cause processes to be created and destroyed.
The last answer to this was incorrect. Whether or not you are the only user on the system or not: Linux is always a multi-user operating system.
logical volume manager
The Linux administrator is called the "root" user.
With most Unix-derived systems, "root" is the super-user account.
No. Linux, like Unix, is designed to be a multi-user system.
Yes, as long as they have user accounts on both machines.
No. There is no single user interface for Linux. GNOME. KDE, Xfce, Fluxbox, and CDE are all examples of user interfaces / desktop environments for Linux.