LINUX TERMINAL TUTS

Why Use The Command Line?

Most computer users today are only familiar with the graphical user interface (GUI) and
have been taught by vendors and pundits that the command line interface (CLI) is a
terrifying thing of the past. This is unfortunate, because a good command line interface is
a marvelously expressive way of communicating with a computer in much the same way
the written word is for human beings. It's been said that “graphical user interfaces make
easy tasks easy, while command line interfaces make difficult tasks possible” and this is
still very true today.



Unlike windows , command line in linux has much more power.

screenshot for the terminal in Ubuntu 12.10

Shell, Terminal, Konsole ???????????????????

SHELL

In Linux when we say command line it is actually referring to the shell. The shell is a program (more specifically "command line interpreter") that takes the input from the keyboard and passes to the operating system to perform the specified task. BASH (Bourne Again SHell) ,a GNU project ,is a shell program that all Linux distributions provide. The emulator might vary from one distribution from others. bash is an enhanced replacement for sh, the original Unix shell program written by Steve Bourne.

for further study on shell

please refer to "http://en.wikipedia.org/wiki/Unix_shell"

TERMINAL

As I've said that shell is a Command Line Interpreter, then how to interact with the shell????? any idea??

The solution for this is the terminal. Actually this is a GUI program which can be controlled by use of pointers. The different terminal emulators available for the Linux are:

GNOME-Terminal for GNOME

Konsole for KDE

and so on...

whatever the names are, they all do the same things.