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

Which layer is not present in TCP/IP model, Which Layer is not present in T...

Which Layer is not present in TCP/IP model? Presentation layer is not present into Transfer Control Protocol/IP Model.

Bus arbitration - computer architecture, Bus arbitration: In single bu...

Bus arbitration: In single bus architecture when more than 1 device requests the bus, a controller known as bus arbiter decides who gets the bus; this is known as the bus arbi

Physics, what is fresnel''s biprism?how it is used to determine wavelength ...

what is fresnel''s biprism?how it is used to determine wavelength of monochromatic source of light

What are the main data structures used in rdbms, What are the main data str...

What are the main data structures used in the following areas: RDBMS, Network data model and Hierarchical data model? RDBMS = Array (i.e. Array of structures) Network data m

Rectifier output with fitters, Rectifier output with fitters: When hal...

Rectifier output with fitters: When half-wave and full-wave rectification suffice to deliver a type of DC output, neither produces constant-voltage DC (direct current). To gen

How to insert script in dreamweaver, Q. How to insert script in dreamweaver...

Q. How to insert script in dreamweaver? Step 1: Click on Insert Step 2: Click on Script Step 3: Choose the type of Script Step 4: Write the code in "Content" Step 5: T

Generates sequence code, The basic project will have each group generate a ...

The basic project will have each group generate a sequence of 1's and 0's using  the Motorola 688HC11 board to turn ON and then turn OFF the TV set installed in ATRC 306. Each tele

Explain dataadapter control, Which method do you invoke on the DataAdapter ...

Which method do you invoke on the DataAdapter control to load  your generated dataset with data? dataAdapter.Fill(ds). The beauty of this method is  it automatically implicitly

What are the requirements for a swapper to work, What are the requirements ...

What are the requirements for a swapper to work? The swapper works on the highest scheduling priority. Firstly it will look for any sleeping method, if not found then it will

Time complexity in the worst case, Speicified the following piece of code: ...

Speicified the following piece of code: int i = 1; int j = 4; while (i     {      if (i%3 == 0) i+=3;      else i+=4;        if (j%2 == 0) j*=4;      els

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