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

Simple maze game, The following is a requirements specification for a simpl...

The following is a requirements specification for a simple game based on a player moving through a maze of connected rooms from an entrance door to an exit door. The required sy

ECS, what is ecs?

what is ecs?

Input - output devices using device controller, Q. Input - output Devices u...

Q. Input - output Devices using Device Controller? A device controller needs not to necessarily control a single device. It can typically control multiple I/O devices. It come

Determine bhca rating for processor and call completion rate, A call proces...

A call processor in an exchange requires 120 ms to service a complete call. What is the BHCA rating for the processor? If the exchange is capable of carrying 700 Erlangs of traffic

Implement simplified expression using nor gates only, Q. For function F(x,y...

Q. For function F(x,y,z) = ∑m (1,2,3,5,6) using TRUTH TABLE only 1. Find POS expression 2. Implement this simplified expression using two level OR-to-AND gate network 3. I

What is importance of ras and cas in sdram, What is importance of RAS and C...

What is importance of RAS and CAS in SDRAM? SDRAM acquires its address command into two address words. This uses a multiplex scheme to save input pins. The initial address word

Difference between perl and mod_perl, Perl is a language and MOD_PERL is a ...

Perl is a language and MOD_PERL is a module of Apache used to increase the performance of the application.

The different storage classes in c, What are the different storage classes ...

What are the different storage classes in C?  Storage classes in C  There are four storage classes in C:  a. Automatic storage class:  b. Register storage class:  c

Data parallel model - parallel programming model, In the data parallel mode...

In the data parallel model, many of the parallel work focus on performing operations on a data set. The data set is usually organized into a common structure, such as an array or a

Example on sorting using combinational circuit, Q. Example on Sorting using...

Q. Example on Sorting using Combinational Circuit? Example: Think about a unsorted list having element values like given below {3,9,8,5,10,12,14,20,90,95,60,40,23,35,18,0}

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