Write a linux terminal shell, Computer Engineering

Assignment Help:

Write a Linux terminal shell. Your shell should act similar to bash. At a high level, your shell should accomplish the following:

1. Print a prompt when waiting for input from the user.

2. Continuously accept commands from the user and execute them until the user exits the shell.

_ If the command the user enters does not exist on the system, an error message should be displayed.

3. Accept the change directory command, and appropriately change the current working directory.

_ If the directory the user enters does not exist, an error message should be displayed.

4. Your shell must keep a history of the last 10 commands executed. The user should be able to cycle through the history using the up and down arrow keys.

5. Your shell must accept the pipe "|" operator. This will execute two commands, where the first process will output to the input of the second process.

6. Accept an exit command that will close your shell properly.

7. Ignore characters such as the left arrow and right arrow.

8. Properly handle when the user types delete or backspace keys.


Related Discussions:- Write a linux terminal shell

What is program controlled i/o, What is program controlled I/O? In prog...

What is program controlled I/O? In program controlled I/O the processor repeatedly checks a status flag to achieve the needed synchronization among the processor and an input a

What is constrained-random verification, What is Constrained-Random Verific...

What is Constrained-Random Verification ? As ASIC and system-on-chip (SoC) designs continue to increase in size and complexity, there is an equal or greater increase in the si

Performance evaluation-parallel computing, Performance Evaluation In th...

Performance Evaluation In this part, we talk about the primary attributes used to measure the performance of a computer system. Unit 2 of block 3 is totally devoted to performa

Interfacing assembly language routines, By now you can write procedures bot...

By now you can write procedures both internal andexternal and pass parameters particularly through stack.Let's us use these concepts to see how assembly language can be interfaced

Performance of pipelines with stalls, Performance of Pipelines with Stalls:...

Performance of Pipelines with Stalls: A stall is reason of the pipeline performance to degrade the ideal performance.                                             Average in

What is a size category, What is a Size Category? The Size category ve...

What is a Size Category? The Size category verifies the probable space needs of the table in the database.

Traditional schema model, (a) Why did SAP introduce the extended star schem...

(a) Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model? (b) What is the difference between a dimension use

How putchar function is used within a c program, How putchar function is us...

How putchar function is used within a C Program ? The following program reads each character in the first line of input entered at the terminal's keyboard. It uses putchar to d

Gui status in a program from the object browser, Can we create a gui status...

Can we create a gui status in a program from the object browser? Yes.  You can make a GUI STATUS in a program using SET PF-STATUS.

Which layer is not present in TCP/IP model, Which Layer is not present in T...

Which Layer is not present in TCP/IP model? Presentation layer is not present into Transfer Control Protocol/IP Model.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd