Abstract: Design, implement, explain, test, and debug a simple, but complete command- line interpreter named cli.
Detail: Design, implement, document, test and run a simple shell, known here as a command-line interpreter (cli). This tool is invoked via the cli command plus possible arguments. Commands are OS commands to be executed. Multiple commands are separated from one another by commas, and each may in turn require further arguments. Cli 'knows' a list of commands a-priori; they are predefined. When invoked, cli checks, whether the first argument is an included command. If so, cli confirms this via a brief message. If not, a contrary message is emitted, stating this is not one the predefined commands. After the message, cli executes all commands in the order listed. After executing the last command, cli prints the current working directory, i.e. it acts as if the pwd command had been issued. Sample runs are shown further below.
Multiple commands of cli must be separated from one another by commas. Possible parameters of any one command are separated from the command itself (and from possible further parameters) by white space. White space consists of blanks, tabs, or a combination, but at least 1 blank space. Here some sample runs with single and multiple commands; outputs are not shown here: .
/cli pwd looks like Unix command pwd; is your sw .
/cli rm -f temp, mv temp ../temp1 ditto: input to your running homework 5
./cli ls -la another "single unix command"
./cli rm a.out, gcc sys.c, cp a.out cli
Cli starts out identifying itself, also naming you the author, and the release date. Then cli prints the list of all predefine commands. Finally, cli executes all commands input after the cli invocation. For your own debug effort, test your solution with numerous correct and also wrong inputs, including commas omitted, multiple commas, leading commas, illegals commands, other symbols instead of commas etc. No need to show or hand-in your test and debug work.
The output of the cli command "cli pwd" or "./cli pwd" should be as shown below, assuming your current working directory is ./classes Sac State/csc139. Here is the output of a sample run with a single command line argument:
herbertmayer$ ./cli pwd
hgm cli 4/12/2020
Legal commands: cd exec exit gcc Is man more mv rm pwd sh touch which $path
2 strings passed to argv[]
next string is 'pwd'
new string is 'pwd
1st cind 'pwd' is one of predefined
/Users/herbertmayer/herb/academia/classes Sac State/csc139
Here the output of another sample run, also with a single cli command:
herbertmayer$ ./cli ls
hgm cli 4/12/2020
Legal commands: cd exec exit gcc ls man more mv rm pwd sh touch which Spath
2 strings passed to argv[]
next string is 'ls'
new string is 'ls!
1st cmd 'is' is one of predefined. admin cli.c sac state yyy
backup 1 24 2020 docs sac state hw
backup 3 9 2020 grades sac state xxx
cli 1 notes
/Users/herbertmayer/herb/academia/classes Sac State/csc139
Interpretation of commands that cli handles can proceed through system(), executed from inside your C/C++ program cli.
List of all commands supported by your cli:
char * cmds [ ] = {
"cd",
"exec",
"exit",
"gcc",
"ls",
"man",
"more",
"mv",
"Im
"pwd"
"sh",
"touch",
"which",
"Spath"
What you turn in:
1. The source program of your homework solution; well commented, preferably one single source file.
2. Four progressively more complex executions of your correctly working cli program, showing all user inputs and corresponding output responses.

Answer:

that is very long question ask a profesional

Explanation:

Type the correct answer in the box. Spell all words correctly.
In a content file, Rick wants to add information that gives directions about how the content will be used. He also wants it to be easily differentiable from the content. Which language should Rick use for this?
Rick can use the _____
language to give directions about the content.

state 4 basic operation performed by a computer​

InfoTrac is an aggregated database?

True

False

Choose the item which best describes the free frame list. 1. a per process data structure of available physical memory 2. a global data structure of available logical memory 3. a global data structure of available physical memory 4. a global data structure of available secondary disk space

Given positive integer n, write a for loop that outputs the even numbers from n down to 0. If n is odd, start with the next lower even number.

public class Square extends Shape{
/**Like with Shape, we will be making a static instance variable
* to keep track of how many squares we have made. It is very
* similar to the one in shape, and it's uses are similar as well.
* It too is initialized to zero.
*
* We may also need additional instance variables, which you should
* declare as needed. They will not need to be static nor initialized
* here though.
**/
/**You may need additional instance variables. Declare them here.
**/
/**The constructor for Square is a little more involved than the
* Shape constructor, as it takes a single double parameter representing
* the side length. It should also call the super constructor, as
* calling it increments the number of shapes made, which we should
* do (as a Square extends Shape). We also need to increment the
* instance variable representing the number of squares made, and handle
* our parameter appropriately.
**/
public Square(double sideLength){
}
/**Like with our other shapes, this is a simple getter method for our
* static instance variable.
**/ public static int getNumSquaresMade(){
return -1;
}
/**As always, we must override getSize() for our Square. A Square's size
* is simply it's side length squared.
**/
}
public class Shape{
private static int numShapesMade = 0;
public Shape(){
numShapesMade++;
}
public static int getNumShapesMade(){
return numShapesMade;
}
public double getSize(){
return 0;
}
}

Popular periodicals might include newspapers

True or false?

What allows you to navigate up down left and right in a spreadsheet?

explain the errors in each error in spreadsheet and how to correct each​

Which of the following describes a characteristic of organic light-emitting diodes (OLEDs) used in clothing?

uniform

flexible

transparent

sizeable

what functions can you perform with project management software?

Write functions to compute a subset, find member, union, and intersection of sets. Follow the steps below:

1. Read two integers from the user.
2. Suppose one of the integers is 2311062158. The binary equivalent of this integer stored in a register will be 1000 1001 1100 0000 0000 0010 1000 1110. This data should be regarded as bit strings representing subsets of the set {1, 2, … 32}. If the bit string has a 1 in position i, then element i is included in the subset. Therefore, the string: 1000 1001 1100 0000 0000 0010 1000 1110 corresponds to the set: {2, 3, 4, 8, 10, 23, 24, 25, 28, 32}.
3. Print out members of the set from smaller to larger. You can do a loop from 1 to 32. Load a masking bit pattern that corresponded to the position number of the loop counter (0x00000001 for 1). Isolate the bit in the operand by using the AND operation. If the result of the AND is not 0 then the loop counter is in the set and should be displayed. Increment the counter and shift the masking bit pattern to the left.
4. Read a number from the user. Determine if that element is a member of the given sets.
5. Determine the union of two sets.
6. Determine the intersection of two sets.
7. Implement a loop back to the main function. See the prompts below: "Enter the first number:" "Enter the second number:" "Members of Set 1:" "Members of Set 2:" "Enter an element to find:" "It is a member/ not a member of set 1" "It is a member/ not a member of set 2" "Union of the sets:" "Intersection of the sets:" "Do you want to compute set functions again?"
8. Test the program using the following data:

Enter the first number: 99999
Enter the second number: 111445
Members of set 1: 1 2 3 4 5 8 10 11 16 17
Members of set 2: 1 3 5 7 9 10 13 14 16 17
Enter an element to find: 7
It is not a member of set 1
It is a member of set 2
Union of the sets: 1 2 3 4 5 7 8 9 10 11 13 14 16 17
Intersection of the sets: 1 3 5 10 16 17

// Exercise 4.16: Mystery.java
2 public class Mystery
3 {
4 public static void main(String[] args)
5 {
6 int x = 1;
7 int total = 0;
8
9 while (x <= 10)
10 {
11 int y = x * x;
12 System.out.println(y);
13 total += y;
14 ++x;
15 }
16
17 System.out.printf("Total is %d%n", total);
18 }
19 } // end class Mystery

Please answer it’s timed

1. A bank customer invested $24 in a bank with 5 percent simple interest per year, write a program the construct a table showing how much money the bank customer would have at the end of each 20- year period starting in 2021 to 2041.

2. A programmer starts with salary of $65,000 and expect to receive $1500 raise each year. Write a program to compute and print the programmer's salary for each of the first 10 years and total amount of money the programmer would receive over the 10- year period.

Write a program second.cpp that takes in a sequence of integers, and prints the second largest number and the second smallest number. Note that in the case of repeated numbers, we really mean the second largest and smallest out of the distinct numbers (as seen in the examples below). You may only use the headers: and . Please have the output formatted exactly like the following examples: (the red is user input)

it is a group of two or more computer system connect to each other​

njvekbhjbehjrbgvkheb

Landing pages in a foreign language should never be rated fully meets?

list eight applications software​

A pharmaceutical company is going to issue new ID codes to its employees. Each code will have three letters followed by one digit. The letters and and the digits , , , and will not be used. So, there are letters and digits that will be used. Assume that the letters can be repeated. How many employee ID codes can be generated

How to use the RANK Function in Microsoft Excel

state two ways of moving an icon from one location to another​

pleaseeeeeeee tellllllllllllllllllllll​

Plzz help will mark brainliest

In Python what are the values passed into functions as input called?

In this lab, you use what you have learned about searching an array to find an exact match to complete a partially prewritten C program. The program uses an array that contains valid names for 10 cities in Michigan. You ask the user to enter a city name; your program then searches the array for that city name. If it is not found, the program should print a message that informs the user the city name is not found in the list of valid cities in Michigan. The file provided for this lab includes the input statements and the necessary variable declarations. You need to use a loop to examine all the items in the array and test for a match. You also need to set a flag if there is a match and then test the flag variable to determine if you should print the the Not a city in Michigan. message. Comments in the code tell you where to write your statements. You can use the previous Mail Order program as a guide. Instructions Ensure the provided code file named MichiganCities.cpp is open. Study the prewritten code to make sure you understand it. Write a loop statement that examines the names of cities stored in the array. Write code that tests for a match. Write code that, when appropriate, prints the message Not a city in Michigan.. Execute the program by clicking the Run button at the bottom of the screen. Use the following as input: Chicago Brooklyn Watervliet Acme

pleaseeeeeeee tellllllllllllllllllllll​

pleaseeeeeeee tellllllllllllllllllllll​

Code a Python program that uses a graphical user interface (GUI) to address a real-world problem. Within reason, you may choose to address any real-world problem that you would like; however, please only choose a real-world problem that is both safe and legal.