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

Python implementation of a solver for the desert cro, Python implementation...

Python implementation of a solver for the desert crossing, Python Programming #Minimum 100 words accepted#

Why we use addressing schemes, Q Why we use addressing schemes? An ope...

Q Why we use addressing schemes? An operation code of an instruction tells the operation to be performed. This operation is executed on some data stored in memory or register.

Functions of an operating system, Question a) In multitasking Operatin...

Question a) In multitasking Operating Systems, there are two kinds of multitasking such as the "Preemptive Multitasking" and the "Cooperative Multitasking". Explain the two me

Explain about interrupt procedure, Q. Explain about Interrupt Procedure? ...

Q. Explain about Interrupt Procedure? The interrupt procedure uses request header to conclude the function requested by DOS. It also performs all functions for device driver. T

#title., REPRESENTATION OF POYNOMIAL OF 2 OR MORE VARIABLES USING ARRAY

REPRESENTATION OF POYNOMIAL OF 2 OR MORE VARIABLES USING ARRAY

Show the instruction execution by using the micro-operations, Q. Show the i...

Q. Show the instruction execution by using the micro-operations? A simple instruction can require: Instruction fetch: fetching instructions from the memory. Instruc

What is recursing downwards, What is recursing downwards? And its ways. ...

What is recursing downwards? And its ways. The design process generally works top-down; you start with the higher level operations and proceed to describe lower level operation

Legacy systems and current infrastructure, Legacy systems and current infra...

Legacy systems and current infrastructure - Information System This problem is most easily understood using the everyday example of the rail ways where the rail network infras

Illustrate logical data processing instructions, Q. Illustrate logical Data...

Q. Illustrate logical Data Processing Instructions? AND, OR, NOT, XOR operate on binary data stored in registers. For illustration if two registers comprises data:   R1 = 10

What are the features of client/server computing, What are the features of ...

What are the features of Client/Server Computing? Although there are several different configurations, different hardware and software platforms and even dissimilar network pro

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