There are many user interfaces for both unix and Linux and most can be used on both. For example kde,gnome,bash shell, ect.
Common user interfaces of Linux include:
bash shell
X
XFCE
LXDE
GNOME
Cinnamon
MATE
KDE
Trinity
Enlightenment
There is no singular user interface for Linux. Linux itself makes no requirement for a user interface. There are plenty of interfaces: GNOME, KDE, Xfce, LXDE, BASH, ZSH, CSH, TSH, FISH, and dozens of window managers.
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.
In Linux, after the user log in to a terminal hi/she receives a user interface called Shell
A terminal is a Command Line Interface (CLI).
You need to be more clear in what type of "interface" you are inquiring about. Linux has it's own API (Application Programming Interface) and ABI (Application Binary Interface). If you are referring to the user interface, Linux can have a GUI, a command line, or even no interface at all.
There are two types of interface.. 1. User Interface 2. Application Interface
1.Linux is MultiTasking OS. 2.Linux won't affect by virus, Because it wont run .exe files. 3.It is Multi User OS. 4.Both GUI(Graphical User Interface) and TUI(Text User Interface).
MS-DOS was user unfriendly it did not have the option to click on icons
ifconfig
Many Linux users find the command line quicker than using the Graphic User Interface (GUI).
MS DOS primarily. LINUX/UNIX is best controlled with out it.
The Linux kernel itself does not include a GUI. However, most Linux distributions have one. Yes, Linux have a GUI.Today many kind of vendor available in Linux Like Redhat fedora,Ubuntu,Suse, Mandriva and many more. Those Linux version provide Cmd and GUI mode for work.