Lab3 Task 2 Trent King

With linked allocation, each file is a linked list of disk blocks; the disk blocks may be scattered anywhereon the disk. The directory contains a pointer to the first and last blocks of the file. Each block contains a pointerto the next block. Refer to the illustration below.  Need help to fill in the codes in void main() ---  #include<stdio.h>#include<stdlib.h>#define TOTAL_DISK_BLOCKS 32#define TOTAL_DISK_INODES 8int blockStatus[TOTAL_DISK_BLOCKS]; // free = 0int blockList[TOTAL_DISK_BLOCKS - TOTAL_DISK_INODES]; // list of blocks of a filestruct file_table {char fileName[20];int fileSize;struct block *sb;};struct file_table fileTable[TOTAL_DISK_BLOCKS - TOTAL_DISK_INODES];struct block {int blockNumber;struct block *next;};int AllocateBlocks(int Size) {---}void main(){int i = 0, j = 0, numFiles = 0, nextBlock= 0, ret = 1;char s[20]; struct block *temp;---for(i = 0; i < numFiles; i++) {---ret = AllocateBlocks(fileTable[i].fileSize);---}---//Seed the pseudo-random number…

C++ We want to build an address book that is capable of storing name, address & phone number ofa person. Address book provides functionality in the form of a menu. The feature list includes: • Add – to add a new person record• Delete – to delete an existing person record by name• Search – to search a person record by name .. Sort - to sort the file after adding a new person record. · Exit – to exit from application

Write the comdlet to create the following directory structure: mid term and MCQ(Subdirectory) are directories and file.txt and short.txt are files Mid Term MCQ file.txt short.txt Short-Answer true.txt

10. The write permission for a directory determines that a) we can write to a directory file b) we can read the directory file c) we can execute the directory file d) we can add or remove files to it

Unix assignment Purpose: The purpose of this assignment is to use various concepts of      the C Shell. 0. Change your default login shell to the C Shell. 1. Create a .cshrc file in your home directory that will do    the following: *  Create the alias (lsall) that will do all of the following:    display the date, and a recursive long list of all files    in a directory. *  Create the alias (whoson) that will display the date and a sorted    list of users logged in. *  Declare the LOCAL variable that controls the size of your history    list to the value 200. *  Declare the shell variable that will cause the C Shell to send    a message to your terminal whenever one of your background    commands complete. 2. Create a .login file in your home directory to do the following. *  Declare the GLOBAL Terminal Type variable to the    value vt100. Display the value of the variable. Logout and log back in to make sure your .cshrc and .login files are automatically executed. Create a lab8.scr…

Python question: I have a .py file in another folder in the same directory how do I import that file into another .py file? For example, my directory folder is called "School_Work" I have 2 folders: Helper_Functions Main_Driver In my Helper_Functions folder I have the file called helper_functions.py and in my main driver I have a file called main.py. I want to import helper_functions.py into main.py. How do I do that?

Task1: Create a directory say, "Linux user" and it contains three files (e.g.; A, B, C). Change the directory permission first for "user", “group", “others", “all" then change the permission of files residing in the same folder/directory.

The minimum permissions you need to read the contents of the directory dir1 is: x on dir1 rwx on dir1 Or on dir1 rx on dir1

Exercise Exercise 3: Add a new command call 'I' which will perform exact same as 'Is -a'. • Exercise 4: Create a function call sortFile, which will sort all filenames of current directory. F5 30 tv F6 8 JA & 89

Programming language: python3   Write a function that creates a new folder called “hw3-folder” inside the current directory (the one where your code is running).

The Directory class has a list of names in it. You should use dynamic memory to create anarray upon instantiation. You should create a copy constructor for the directory class and anassignment operator (i.e. operator=()). You should create a function called fillDirectory whichaccepts a size for the directory and the names for it both of which should be given by the user.In main, create directory1 and fill it with information. Use the assignment operator=() to setdirectory2 equal to directory1. This is in c++

C++ Assignment Setup  Part 1: Working With Process IDs  Modify the getProcessID() function in the file named Processes.cpp The function must find and store the process's own process id The function must return the process id to the calling program. Note that the function currently returns a default value of -1.Hint: search for “process id” in the “System Calls” section of the Linux manual. Part 2: Working With Multiple Processes  Modify the createNewProcess() function in the file named Processes.cpp as follows: The child process must print the message I am a child process! The child process must then return a string with the message I am bored of my parent, switching programs now The parent process must print the message I just became a parent! The parent process must then wait until the child process terminates, at which point it must return a string with the message My child process just terminated! and then terminate itself. Hint: search for “wait for process” in…

the state and variable display must be:Unsorted Partition Reference Index: 0, Traversing Index: 7, Current Traversing Index Value: mango, Next Index Value: plum, Swapping Condition: FalseCurrent Array: ['apple', 'avocado', 'orange', 'banana', 'strawberry', 'pineapple', 'plum', 'mango']   The input:["apple", "avocado", "orange", "banana", "strawberry", "pineapple", "plum", "mango"]Note:The sorted partition is on the left side. Then, the order is increasing based on the number of vowels of a string.the output must be like this:['plum', 'apple', 'strawberry', 'mango', 'orange', 'banana', 'avocado', 'pineapple']     -------   What is the 3rd item of the unsorted partition when there are already 2 items in sorted partition and after the 3rd traversal?

POWERSHELL TASK Try to multiply two numbers stored into a file and the file name should be a command-line argument.

79. The type of allocation in which blocks of file are allocated to consecutive blocks of disks is classified as a. indexed allocation b. header allocation c. contiguous allocation d. linked allocation

File Attributes 5. File attributes (a) File name: file name is a very important file attribute When a file changes name, it seems to change its identity (just like when you change your name) The oldest file naming we may remember is the 8 +3 convention in DOS (in DOS, all file names can NOT be bigger than 8 characters, special characters like spaces were not allowed etc.). So a file like C:\\Program Files\\Adobe\\Photoshop can cause problems in DOS, and it has to be represented in different ways using strange character like~ (tilde). Elaborate on your understanding of file names or file naming in different operating systems (Windows, Mac, Linux etc.). For example, some OS like NTFS may allow longer file name, allow space, and even allow non English like characters such as Chinese file names. Is there a maximum length of file names (can you have a file name of 1,000 characters long?) (b) File creation date and modification date. File can be created and modified using different ways of…

Exercise 2 - Create a directory structure Write a batch program called EX2.BAT that creates the following directory structure on drive E. D:\ ACCOUNT1 rESOUNT2 Letters Email Java Аpps Check either in Explorer or at the prompt that the directory structure shown above has been created. Add comments to all your batch files using Rem command at start of the line. The comments should indicate the following: Program purpose Author Date written 13 |Page Run the batch file EX2.BAT. Are you now in a different folder to the one you were in before you ran the batch file. You should not move directory as a result of running a batch file unless that is part of the batch file.

IN PYTHON - please help with lines beginning with ###TODO import csvimport random as randimport sys # define functions        def load_csv_data(filename):    """    load the data from csv file    returns a tuple containing two lists:    col_names: first row of csv file (list of strings)    row_data: all other rows of csv file (list of list of strings)        if error is encountered reading filename, returns -1    """    try:        data = []        ### TODO - load the data from csv file        ### use csv.reader to append rows of filename to data        except:        print("Error loading data.")        return -1     # if successful, return tuple of column names and row data    col_names = data[0]    row_data = data[1:]    return (col_names, row_data) def display_menu():    ### TODO - print the main menu    print("Main Menu")    print("1 - Get Clean Sample")    print("2 - Calculate Total Profit in Sample")    print("Q - Quit") def get_valid_menu_option():    ### TODO - get valid menu…

POWERSHELL TASK Try to swap two strings/names in a file and the file name should be a command-line argument.

A movie file has the following record structure:name ofthe movie producer director type productioncostAssume that the name of the movie is the primary key of the file. Thefield type refers to the type of the movie, for example, drama, sci-fi, horror, crimethriller, comedy and so forth. Input a sample set of records of your choice into themovie file.i) Implement a primary index-based ISAM file organization.ii) Implement secondary indexes on director, type and productioncost.

A file is preferable to an array of structures because A. file lives even after the program that created it terminates B.  memory space will not be wasted  C. there are many system tools to manipulate files D. All of the abone

In a contiguous allocation, if the file has n blocks long and starts at location b, the starting and last blocks being occupied by the file is ___ respectively. a. b and b + n - 1 b. n and b + n + 2 c. b and b + n d. n and n + b -1

If a file contains an index directory that allows for random access, what does it mean?

Instructions Add a command to this chapter’s case study program that allows the user to view the contents of a file in the current working directory. When the command is selected, the program should display a list of filenames and a prompt for the name of the file to be viewed. Be sure to include error recovery in the program. If the user enters a filename that does not exist they should be prompted to enter a filename that does exist. An example of the program input and output is shown below: /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6 Search for a file name 7 View the contents of a file 8 Quit the program Enter a number: 7 Files in /root/sandbox: filesys.py example.txt Enter a file name from these names: example.txt THIS IS CONTENT OF AN EXAMPLE FILE. /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6…

C++ You must create a header file for each task with implementation as the execute task. Input file A contains numeric values  and the Output File A is sorted.  Algorithm:  a ← read Value from file (A);  while not End Of File (A) {       b ← read Value from file (A);       If a> b {             return false;        }       a ← b;    } return true;

C++ Part 1: Working With Process IDs Modify the getProcessID() function in the file named Processes.cpp The function must find and store the process's own process id The function must return the process id to the calling program. Note that the function currently returns a default value of -1.Hint: search for “process id” in the “System Calls” section of the Linux manual.   Take a screenshot of a sample output and upload the picture as part of your assignment submission. Part 2: Working With Multiple Processes    Modify the createNewProcess() function in the file named Processes.cpp as follows: The child process must print the message I am a child process! The child process must then return a string with the message I am bored of my parent, switching programs now The parent process must print the message I just became a parent! The parent process must then wait until the child process terminates, at which point it must return a string with the  message My child process just…

* Question Completion Status: A Moving to another question will save this response. Question 1 Run-time binding is useful for saving on memory because : It is static linking Only load modules when they're needed. Ob. Don't allow several processes to share one copy of a module. modules cannot be loaded d. A Moving to another question will save this response. O DELL

UNIX ASSIGNMENT - IXQuestion 9 : In an organisation one wants to know how many programmers are there. The employee data is stored in a file called ‘personnel’ with one record per employee. Every record has field for designation. How can grep be used for this purpose?