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

Classification of interrupts - computer architecture, Classification of int...

Classification of interrupts:   1. a) asynchronous   external components or hardware malfunction 1.b)synchronous   function of program state (for example over

What is a scope resolution operator, A scope resolution operator (::), can ...

A scope resolution operator (::), can be used to describe the member functions of a class outside the class.

Explain loop level of parallel processing, Loop Level At this stage, fo...

Loop Level At this stage, following loop iterations are candidates for parallel execution. Though, data dependencies among subsequent iterations can restrict parallel execution

Find out the 2's complement of 1101110, The 2's complement of the number 11...

The 2's complement of the number 1101110 is ? Ans. 1's complement of 1101110 is = 0010001 ans hence 2's complement of 1101110 is = 0010001 + 1 = 0010010.

Two layer artificial neural networks, Two Layer Artificial Neural Networks:...

Two Layer Artificial Neural Networks: However decision trees are whenever powerful they are as a simple representation scheme. Whereas graphical on the surface that they can b

Find the maximum and minimum number-binary, What is the maximum and minimum...

What is the maximum and minimum number in the range of a 7-digit number for each of the following cases? Express all numerical answers in both the original base and its decimal (ba

What do you mean by consumer behavior, What do you mean by consumer behavio...

What do you mean by consumer behavior? Explain the factors influencing consumer behavior? Factors Influencing Consumer Choice: Consumer choice or decision behaviour refers to t

Explain the physical and logical paths in a computer, How is communication ...

How is communication between computers established in Internet. What characteristics need to be defined in a communication protocol? Explain the physical and logical paths in a com

What is real time clock, Real time clock A real-time clock keeps the t...

Real time clock A real-time clock keeps the time in real time - i.e. in hours and minutes. Software for the real-time clock comprises an interrupt service procedure which is c

Name the software required to run video conferencing, Name The software req...

Name The software required to run video conferencing The software and hardware required to run video conferencing is very sophisticated. Apart from obvious items (that is large

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