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

Explain the characteristics of program interpretation model, Explain the ch...

Explain the characteristics of program interpretation model. The program interpretation model characteristics are: The source program is retained into the source form it

What are intelligent agents, Q. What are intelligent agents? What tasks wil...

Q. What are intelligent agents? What tasks will they perform? ANSWER: Intelligent agents are software that helps you, or operate on your behalf, in performing repetitive comput

Basic of C, write algorithm and draw flowchart for exchange the values of t...

write algorithm and draw flowchart for exchange the values of two variables.

What problem does the namespace feature solve, Multiple providers of librar...

Multiple providers of libraries may use common global identifiers causing a name collision when an application tries to link with two or more such libraries. The namespace feature

Operating system, explain the various types of computer systems

explain the various types of computer systems

Cryptography, 1. Consider the one-time pad encryption scheme to encrypt a 1...

1. Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the event "messa

Perform the subtraction using 1's complement, Perform the subtraction using...

Perform the subtraction using 1's complement of 11001 - 10110 Ans. 11001 - 10110 = X - Y                            X = 11001 1's complement of Y = 01001

What is combinational circuits, Q. What is Combinational circuits? Comb...

Q. What is Combinational circuits? Combinational circuits are interconnected circuits of gates according to definite rules to generate an output relying on its input value. A w

Information gain, Information Gain: Now next here instantly return to ...

Information Gain: Now next here instantly return to the problem of trying to determine the best attribute to choose for a particular node in a tree. As in the following measur

What is read only memory, Read only memory (ROM) ROM holds the instruct...

Read only memory (ROM) ROM holds the instructions for starting up the computer. This sort of memory can only be read and can't be altered (that implies deleted or written to) a

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