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

Default communicator in mpi, Problem 1 (a) What is the difference betw...

Problem 1 (a) What is the difference between an MPI blocking send function and an MPI non-blocking send function? (b) What is a communicator in MPI? (c) Name correctly

Dhcp, how to set up dhcp

how to set up dhcp

Differentiate between compiler and interpreter, (i) Compiler and Interpret...

(i) Compiler and Interpreter: These are two types of language translators. A compiler changes the source program (user-written program) into an object code (machine language b

Explain excess-3 and gray code using four binary digitis, Give the details ...

Give the details of excess 3 codes and gray code using four binary digits. Ans: Table of excess 3 codes and gray code using four binary digits Binary

What do you call an event and when do you call an assertion, What do you ca...

What do you call an event and when do you call an assertion? Assertion based Verification Tools, checks whether a statement holds a explained  property or not, while, Event bas

What is one-way association, What is one-way association? One-way assoc...

What is one-way association? One-way association means association will traverse in only in one direction and implement using the actual implementation. If the multiplicity is

calculates the area and perimeter of a rectangle, Write a program, using f...

Write a program, using functions, that calculates the area and perimeter of a rectangle whose dimensions (Length & width) are given by a user.

Assignment for statical natural language processing, Hi I study master of ...

Hi I study master of computer science I have assignment for subject statical natural language processing . I need solved due date on 6 May2014 at 11 pm Australia time I need yo

What is called when a program is in execution, A program in execution is ca...

A program in execution is called?  Ans. When a program in execution is known as Process.

Write a pseudocode for a program, Write a pseudocode for a program that acc...

Write a pseudocode for a program that accepts 10 numbers from a user and calculates the sum of all the numbers entered that are greater than or equal to 10.

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