Accept commands from the user, Computer Engineering

Assignment Help:

Your shell must accept commands from the user. The first step to implement this will be reading a line of input. This section will focus on what to do with the line of input after it is read. A command will consist of the name or path to the command, followed by zero or more arguments separated by white spaces. For this assignment, we will define white space as one or more space characters. Here is an example of a command with arguments:

l s  - a l

In this argument _ls_ will be the command and _-al_ is the first and only argument. To allow proper formatting the commands, we will put these commands into an array of char*. So, the first element of the array should be _ls_, and the second element should be _-al_. To parse the commands, we suggest using the strtok function from string.h. You can use just a space (" ") as the lone delimiter. Remember to consider the case where the user does not enter any command and hits the enter key. Your shell should simply print the prompt again on a new line.


Related Discussions:- Accept commands from the user

Discuss the mount and unmount system calls, Discuss the mount and unmount s...

Discuss the mount and unmount system calls. The privileged mount system call is used to join a file system to a directory of another file system; the unmount system call detach

Software engineering, assignment on transaction flow, transform flow, trans...

assignment on transaction flow, transform flow, transform mapping: refining the architectural design

And-elimination-introduction rule - artificial intelligence, And-Eliminatio...

And-Elimination-Introduction rule - Artificial intelligence: And-Elimination In English, this says that "if you know that many things are all true, then you know that any

Software estimation, Software Estimation The statement of scope helps t...

Software Estimation The statement of scope helps the planner to established estimates using one or more method which fail into two wide categories: empirical modeling and decom

Client server using c, client server or multithreaded client-server, where ...

client server or multithreaded client-server, where server will create pool of worker threads (say 5) to provide services to pool of clients (say 5 ).Server should be behaving as a

Explain advantages and disadvantages of a active document, Explain advantag...

Explain advantages and disadvantages of a active document. The advantage of an active document over a dynamic document lies in its capability to update the information contin

Which electro mechanical switch had fewer moving parts, The             el...

The             electro mechanical switch (developed in 1938) had fewer moving parts than earlier switches. (A)  No. 1ESS                                 (B)  Strowger (

Using bit wise operator implement nor and nand gate, Q. Write a program t...

Q. Write a program to implement NOR, NAND, XOR and XNOR gates using and without using bit wise operator. Also perform necessary checking. The user has option to give n numbe

Development of information system, Development of information system must b...

Development of information system must be considered as capital investment: The developer of an information system must think about different solutions of a particular problem and

Explain the life cycle of a process, Explain the life cycle of a process ...

Explain the life cycle of a process Each procedure has a life cycle, which consists of execution, creation and termination phases of the procedure.  A method may create severa

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