The document discusses the command line interface (CLI), providing definitions and discussing its history, advantages, disadvantages, examples, and conclusions. Specifically, it defines CLI as a command line program that accepts text input to execute operating system functions. It notes that CLIs were the primary way to interact with computers in the 1960s-1980s and have advantages like efficiency and low memory usage, but can be confusing for new users due to many commands needing to be learned and typed accurately.

1. Erbil Polytechnic University
Choman Technical Institute
Department Of Information Technology
Stage 2
Prepared By :
Abdulqadr Muhamaad
Command line interface
“CLI”

2. Content
⁃ What is CLI
⁃ History of CLI
⁃ Advantage CLI
⁃ Disadvantage CLI
⁃ Some example
⁃ Conclusion

3. What is CLI?
CLI stands for:
•Command Line Interface
•Command Line Interpreter
•Command Line Input
CLI is a command line program that accepts text input to execute
operating system functions.

4. History of CLI:
In the 1960s, using only computer terminals, this was the only way to interact with computers,
In the 1970s an 1980s, command line input was commonly used by Unix systems and PC
systems like MS-DOS and Apple DOS.

5. Advantage CLI:
I. If you know the commands, a CLI can be a lot faster and efficient than any other type of
interface. It can also handle repetitive tasks easily.
II. A CLI requires less memory to use in comparison to other interfaces. It also does not use as
much CPU processing time as other interfaces.
III. A CLI doesn’t require Windows and a low-resolution monitor can be used. Meaning, it needs
fewer resources, yet is highly precise.

6. Disadvantage CLI
I. If you are new to programming or have never used a CLI, this approach can be
confusing. There are also a lot of commands that need to be learned (i.e. in this case
of Unix, there are hundreds of commands).
II. Accuracy is of the utmost importance. If there is a spelling error, a command will
fail. Also, if an instruction is mistyped, you’ll often need to start from scratch.

7. Some Example?

8. Conclusion?
The command line can be the default interface for a computer, but most personal
computers use a program (like Terminal) within the desktop graphical interface to
provide the command line interface.

9. THAN
K
YOU
FOR
YOUR
ATTENTION