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

Procedures relating to the deployment of the server, Edith & Associates is ...

Edith & Associates is a modern law firm. They have an Internet Link that is an ADSL 8MB links from JJNET. The server they are to deploy will the main service giving  server and wil

Explain the working of a demultiplexer, Explain the working of a demultiple...

Explain the working of a demultiplexer with the help of an example. Ans: 1:4 Demultiplexer: Fig.(a) demonstrates the logic circuit of a 1:4 demultiplexer. This has two NOT

Rules for calling assembly subroutines from, Q. Rules for calling assembly ...

Q. Rules for calling assembly subroutines from? The rules for calling assembly subroutines from C are: (i)  Memory model: The calling program and called assembly programs sh

Integrating virtual memory, Integrating Virtual Memory, TLBs, and Caches - ...

Integrating Virtual Memory, TLBs, and Caches - computer architecture:   There are 3 types of misses: 1. a cache miss 2. TLB miss 3. a page fault 2 techniqu

Elucidate basic time division time switching method, With the help of block...

With the help of block diagram Elucidate basic time division time switching method. Basic Time Division Switching: Functional blocks of a memory based time division switching

Vertical alignment of fields one below the other, Which Command permits for...

Which Command permits for vertical alignment of fields one below the other. UNDER Command is used ofr vertical alignment.

What is the main reason to encrypt a file, The main reason to encrypt a fil...

The main reason to encrypt a file is to ? Ans. The main purpose to encrypt a file is to secure that for transmission.

What is guard bits, What is guard bits? Guard bits are extra bits which...

What is guard bits? Guard bits are extra bits which are produced while the intermediate steps to yield maximum accuracy in the final results.

Pros and cons of assembly language, Pros and Cons of Assembly Language ...

Pros and Cons of Assembly Language The following are a number of advantages / disadvantages of employing assembly language: Assembly Language offers more control over ha

What is a snooping cache, DNS cache snooping is not a term the author just ...

DNS cache snooping is not a term the author just made up, it is called and discussed by some notable DNS execution developers, and a few interested DNS administrators have prob

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