Write the purpose of given command line statements. # useradd sachin # gpasswd -A sachin Unixtech # grep Unixtech /etc/gshadow

When compiling source code into a binary program, which command does the compilingusing the GNU C Compiler?a. tarb. ./configurec. maked. make install

1) Imagine you are creating a game in python on a Linux:

Select all true statements   import java.io.File; import java.util.Scanner;   public class DirectorySize {   public static void main(String[] args) {     // Prompt the user to enter a directory or a file     System.out.print("Enter a directory or a file: ");        Scanner input = new Scanner(System.in);     String directory = input.nextLine();         // Display the size     System.out.println(getSize(new File(directory)) + " bytes");   }     public static long getSize(File file) {     long size = 0; // Store the total size of all files       if (file.isDirectory()) {       File[] files = file.listFiles();        for (int i = 0; files != null && i < files.length; i++) {         size += getSize(files[i]); // Recursive call       }     }     else { // Base case       size += file.length();     }       return size;   } }   a. The length() method returns the size of a file.   b. The listFiles() method returns an array of File objects and excludes each directory.…

Part 1 Opening, Compiling and Running Your First Program Exercise 1: Logon to your system based on your professor’s instructions. Exercise 2: Bring in the firstprog.cpp program from the Lab 1 folder. Exercise 3: Compile the program. Exercise 4: Run the program and write what is printed on the screen. The code of firstprog.cpp is as follows: // This is the first program that just writes out a simple message// Place your name here#include <iostream> // needed to perform C++ I/Ousing namespace std;int main (){cout << "Now is the time for all good men" << endl;cout << "To come to the aid of their party" << endl;return 0;}

Executables in Linux are called what ?   a. ELF files b. Executables c. Binaries d. MSI Files

How can I open a file in the computer language Visual Basic for Applications?