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

INTERRUPT METHOD, interrupt method in keypad operation coding using PIC16

interrupt method in keypad operation coding using PIC16

Explain working of intranet, Intranets are mainly "small" Internets. They u...

Intranets are mainly "small" Internets. They use same network facilities that Internet does, though access is restricted to a limited sphere. For example, a company can set up an i

IT PMP project managemnet., Identify at least eight milestones for this pro...

Identify at least eight milestones for this project. Write a one-page paper describing each milestone using the SMART criteria?

Example of the horizon problem, Example of the horizon problem: It is ...

Example of the horizon problem: It is also worth bearing in mind the horizon problem, however a game-playing agent cannot see much far satisfactory into the search space. Now

What is dithering, Q. What is Dithering? CMYK provides only 8 colours (...

Q. What is Dithering? CMYK provides only 8 colours (C, M, Y K, Violet= C + M, Orange= M + Y, Green = C + Y, and colour of paper itself!). What about other colours?  For these t

Execute the command in linux, Now that the user's command has been parsed i...

Now that the user's command has been parsed into an array of char*, we can pass this to the OS to execute the command. To execute the command, use the execvp() function from unis

What is called pcp, What is called PCP? The phenomenon of un-decidabili...

What is called PCP? The phenomenon of un-decidability is not confined to problems concerning automata. An un-decidable problem concerning on simple manipulation of strings is k

Resolution method - artificial intelligence, Resolution Method - Artificial...

Resolution Method - Artificial intelligence: A minor miracle happened in 1965 when Alan Robinson published his resolution function. This function uses a generalized format of t

Demorgan''s first theorem, DeMorgan's first theorem shows the equivalence o...

DeMorgan's first theorem shows the equivalence of which logic gate ? Ans. DeMorgan's first theorem depicts the equivalence of NOR gate and Bubbled AND gate. For De Morgan's

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