Project 1-UNIX Shell Design a C program that copy the file "input.txt" to "out.txt" using Ubuntu (Linux) system calls. The program will create the directory (~/OS-Project) to store the file "out.txt" inside it. The program will skip m letters at a time. The process of reading will start from the letter of index i. The values of m and i must be provided by the user.

FileAttributes.c 1.      Create a new C source code file named FileAttributes.c preprocessor 2.      Include the following C libraries a.       stdio.h b.      stdlib.h c.       time.h d.      string.h e.       dirent.h f.        sys/stat.h 3.      Function prototype for function printAttributes() main() 4.      Write the main function to do the following a.       Return type int b.      Empty parameter list c.       Declare a variable of data type struct stat to store the attribute structure (i.e. statBuff) d.      Declare a variable of data type int to store an error code (i.e. err) e.       Declare a variable of data type struct dirent as a pointer (i.e. de) f.        Declare a variable of data type DIR as a pointer set equal to function call opendir() passing explicit text “.” as an argument to indicate the current directory (i.e. dr) g.      If the DIR variable is equal to NULL do the following                                                   i.      Output to the…

Write a Python program that calculates the average 5 quiz scores from a file with student ID and scores. Your program must have 2 functions; the main and calculateAvg- The main function reads data from an input file, which has the format shown below. Each line in the file starts with the Student ID followed by 5 values representing the scores attained by the Student in 5 quizzes. For each Student, the calculateAvg function receives a list containing the 5 values and returns another list containing all the values in the original list plus the average score of the quizzes for each student. This information will be written in an output file as shown below. Also, you must include the class average at the end. Which includes all the students in the list. Note: You program must be general and works for any number of Students. All reading and writing must be done in the main function. Assume each student has 5 quiz scores Input text file name must be grades.txt Output text file name must be…

Write a program in C++ that creates a file. Write this  data into that file column wise as a header. Then keep adding data in colum wise format. The program should check if there is data in the file and then write the data in the next row.  First add:  TIME            DAY          MONTH         YEAR Then check the file and add: 01:25            07             JUNE             2008 Then check again the file and add this in next row: 14:00            30             MARCH         2019

1. Write a program in C/C++ that reads a table of data from an input file and displays the data. The program then prompts the user to see the data in specific order. The output of your program should display the sorted data (descending order) according to the user selection. Your program should display the prompt repeatedly until the user wants to exit. See the test run. The input file contains four data fields: Country, Total cases, New cases, and Total deaths. The number of rows (data) can vary between 5 to 100. You must use Quick sort in your implementation. Example test run: Country               Total Cases               New Cases                  Total Deaths         USA                       48072665                      70590                           784775 India                      34447536                      10560                           463655 Brazil                     21960766                        2799                            611384 UK…

write the code in C++

step 1: Write a python program that will ask the user for their grocery list, one item at a time, and will write it to a file called groceries.txt.  The program should create a new file called groceries.txt that will contain all of the user’s groceries when opened. Step 2: Modify the python program that creates a groceries.txt file so that if the user’s favourite fruit is not on the list, the program will append it to the end of groceries.txt file.

Plz use c programming to solve this question. Plz don't use a library other than # include < stdio. h > and # include math . h and # define n 100

This is phython not Java Lab:  Write a file copying program.  The program asks for the name of the file to copy from (source file) and the name of the file to copy to (destination file).  The program opens the source file for reading and the destination file for writing.  As the program reads each line from the source file and it writes the line to the destination file.  When every line from the source file has been written to the destination file, it close both files and print “Copy is successful.” In the sample run, “add.py” is the source file and “add-copy.py” is the destination file.  Note that both “add-copy.py” is identical to “add.py” because “add-copy.py” is a copy of “add.py”. Sample run: Enter file to copy from: add.py Enter file to copy to  : add-copy.py Copy is successful.   Source file: add.py print("This program adds two numbers")   a = int(input("Enter first number: ")) b = int(input("Enter second number: "))   print(f"{a} + {b} = {a+b}")   Destination…

9b_act2. Please help me answer this in python programming.