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

How is the command suppress-dialog useful, How is the command Suppress-Dial...

How is the command Suppress-Dialog useful? Suppressing whole screens is possible using this command.  This command permits us to perform screen processing "in the background".

What is race around condition, What is race around condition? Ans: ...

What is race around condition? Ans: Race Around Condition:- Jn Kn Q(n+1) output   0 1 0 1   0 0

Knowledge representation - artificial intelligence, Knowledge Representatio...

Knowledge Representation: To recap, we now have some characterizations of "AI", that when an "AI" problem arises, you will be able to put all into context exactly, find the co

By which transport protocol used, The transport protocol used by TFTP (Triv...

The transport protocol used by TFTP (Trivial File Transfer Protocol) is? The transport protocol used through Trivial File Transfer Protocol is UDP.

C program, In this problem you are given a board in which some of the eleme...

In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc

Example of blocking probability for the three stage network, A three stage ...

A three stage network is realized by using switching matrices of size p x s in stage 1, r x r matrices in stage 2 and s x p matrices in stage 3. Using the Lee's probability graph s

What is program annotation packages, Q. What is Program Annotation Packages...

Q. What is Program Annotation Packages? A quite renowned scheme in this field is OpenMP a newly designed industry standard for shared memory programming on architectures with u

Two ways of converting a two input nand gate to an inverter, 1)      Short ...

1)      Short both I/Ps of NAND gate & use the gate as an inverter. 2)      Connect any one of the two I/Ps to VCC & use the remaining I/P & use the gate as an inverter.

How web-based word processing works, How Web-Based Word Processing Works? ...

How Web-Based Word Processing Works? Web-based word processors are hosted in the cloud, not on the hard drive-as are the documents formed with these applications. And these web

Paging supervisor - computer architecture, Paging supervisor: This par...

Paging supervisor: This part of the operating system built and manages the page tables. If the  due to dynamic address translation hardware a page fault occurs exception then

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