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

Performance of a parallel algorithm - number of processors, Factor which he...

Factor which helps in analysis of parallel algorithms is the total number of processors needed to deliver a solution to a provided problem. So for a given input of size let's say n

Karnaugh maps, Minimisation using Boolean algebra is not always straight fo...

Minimisation using Boolean algebra is not always straight forward and sometimes it is not obvious if a further manipulation would give a simpler circuit. Karnaugh maps are a muc

Dynamic configuration of parallel virtual machine, Q. Dynamic Configuration...

Q. Dynamic Configuration of parallel virtual machine? int pvm_addhosts( char **hosts, int nhost, int *infos ) Add hosts to virtual machine. hosts is an arra

Perceptrons of artificial neural networks, Perceptrons: However the we...

Perceptrons: However the weights in any ANN are usually just real numbers and the learning problem boils down to choosing the best value for each weight in the network. Becaus

Explain jk flip-flop using sr flip-flop, Q. Explain 4 bit Ripple counter wi...

Q. Explain 4 bit Ripple counter with necessary diagram. Q. Explain JK Master-slave Flip-flop with block diagram and logic design. Q. Explain JK flip-flop using SR flip-flop

Network properties, Network Properties There are many properties are as...

Network Properties There are many properties are associated with interconnection networks:- 1) Topology: It signify how the nodes a network are organised. A variety of top

What are the different layers in r/3 system, What are the different layers ...

What are the different layers in R/3 system? There are three layer:- Presentation Layer. Application Layer. Database Layer.

Advantage of booth and restoring division algorithm, Describe the advantage...

Describe the advantage of using Booth algorithm? Ans:  a) It achieves efficiency in the number of additions needed when the multiplier has a few large blocks of 1's. b) It

Equivalence between vhdl and c, Equivalence between VHDL and C? There i...

Equivalence between VHDL and C? There is concept of understanding in C there is structure.Based upon requirement structure provide facility to store collection of various data

Pipelined processor, Pipelined Processor Having discussed pipelining; n...

Pipelined Processor Having discussed pipelining; now we can describe a pipeline processor. A pipeline processor can be distinct as a processor that consists of a series of proc

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