The last set of questions revolves around the concepts of ownership and permissions.When a user creates a file or directory, that user's user name and primary group become the owner and group owner of the file, respectively.Consider this newly created file, ownFile. Answer the following two questions.[test50@centos ~]$ touch ownFile[test50@centos ~]$ ls -1 ownFile|-rw-rw-r--. 1 test50 test50 0 Nov 18 16:10 ownFile[test50@centos ~]$ |What is the group owner of the file ownFile?What is the command line you would use to change the group ownership of the file, ownFile to newgrp?

touch command is used to create a file ls command is used to list the directory and its content ls…

[test50@cents ~]$ touch ownFile [test50@centos ~]$ ls -1 ownFile |-rw-rw-r--. 1 test50 test50 0 Nov 18 16:10 ownFile [test50@centos ~1$ [ What is the group owner of the file ownFile? What is the command line you would use to change the group ownership of the file, ownFile to newgrp?

[test50@cents ~]$ touch ownFile [test50@centos ~]$ ls -1 ownFile |-rw-rw-r--. 1 test50 test50 0 Nov 18 16:10 ownFile [test50@centos ~1$ [ What is the group owner of the file ownFile? What is the command line you would use to change the group ownership of the file, ownFile to newgrp?

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter14: Files And Streams

Section: Chapter Questions

Problem 2CP: In Chapter 11, you created the most recent version of the MarshallsRevenue program, which prompts...

See similar textbooks

Similar questions

In this project, you should develop a library management system application using structuresand files. More specifically, your application should enable a user to read and write bookdetails to a file (books.txt). The file should store the following information for the books. Oneline per book and each field to be separated by tab.• Book ISBN• Book title• Author first name• Author surname• Year• Availability for loan [yes/no]The user of this application should have the following options in the form of a nice presentedmenu.Add a book: The user should add all the details of each book by answering a set of questions(book isbn? Book title? author? year?). The availability for loan is randomly generated by theprogram (y: yes, n:no). The book should be added at the end of the file.Search for a book: The user should be given three options here.▪ Search by the title: The user will input a keyword and the program willsearch for all the titles that contain this keyword and display all…
Develop a simple gradebook management system in Java that allows professors to record and retrieve student grades from a file. The system should have the following features: 1. Add a Student Record: This feature should allow the user to input student details like Student ID, Name, and Grade. This data should be appended to a file named gradebook.txt. 2. Retrieve a Student Record: The system should retrieve a student's grade using the Student ID. 3. List All Records: Display all student records present in the file. 4. Update Student Grade: Update the grade of a student using their Student ID. 5. Delete Student Record: Remove a student record from the file using their Student ID. File Structure (gradebook.txt): Each line in the file represents a student record and is structured as: [Student ID], [Student Name], [Grade] For example: S1001, John Doe,A S1002, Alice Smith, B+
Build an application for a car rental company. It should offer the following features:• Maintain a customer database in a file:o Register / add new customers. Customer information should include▪ Customer ID number▪ Name▪ Phone numbero Search customer database by:▪ Customer ID number▪ Name▪ Phone numberAnd print out the matching records• Maintain a database in a file:o Add a new vehicle to the fleet. Vehicle information should include▪ Model year▪ Make▪ Model name▪ License plate number▪ Customer number who is currently renting vehicleo Delete a vehicle from the fleeto Rent a vehicle to a registered customero Receive rented vehicle back from customero Search vehicle database by any field:▪ Model year + Make + Model name▪ License plate number▪ Customer number who is currently renting vehicle pls u have to use FILE to solve this proplem
In Chapter 11, you created the most recent version of the MarshallsRevenue program, which prompts the user for customer data for scheduled mural painting. Now, save all the entered data to a file that is closed when data entry is complete and then reopened and read in, allowing the user to view lists of customer orders for mural types.
Build an application for a car rental company. It should offer the following features:• Maintain a customer database in a file:o Register / add new customers. Customer information should include▪ Customer ID number▪ Name▪ Phone numbero Search customer database by:▪ Customer ID number▪ Name▪ Phone numberAnd print out the matching records NOTE ; i need the answer to be by switch
Write a Java GUI application that will keep track of a user’s contact list. The application must contain the contact mobile number, work number and email address. Q.3.1 On the form, create a list box that will allow the user to select a contact name, which is populated from a text file. Also create a search button that when clicked will display the mobile number, work number and email address. Q.3.2 Create a sequential file (contacts.txt) that contains data for the following fields: The contact name; The contact mobile number; The contact work number; The contact email address. Q.3.3 Load the data from the contacts.txt file and populate the list box with the contact names. Include a feature to inform the user on the amount of contacts. Contacts: Joe Bloggs082 123 1234011 123 1234jb@gmail.comJeff Jones072 157 1545021 555 5555jj@gmail.com
If wrong answer this time will downvote it Create a class with a static main that tests the ability to resolve and print a Path: • Create an instance of a FileSystem class. • Resolve an instance of a Path interface from a directory path and filename. • Print the constructed Path with System.out.println() method. 2. Create a class with a static main that tests the ability to resolve and print a Path: • Create an array of Path class. • Instantiate instances of Path with absolute and relative paths. • Print the constructed elements of the array of Path class with System.out.println() method. 3. Create a class to test serialisation class that implements serializable, it should implement the following: • A static void method that serialises an object. • A static void method that deserializes an object. • A static main method that tests the two by moving an object from one to the other
Build an application for a car rental company. It should offer the following features: Maintain a customer database in a file: Register / add new customers. Customer information should include Customer ID number Name Phone number Search customer database by: Customer ID number Name Phone number And print out the matching records Maintain a database in a file: Add a new vehicle to the fleet. Vehicle information should include Model year Make Model name License plate number Customer number who is currently renting vehicle Delete a vehicle from the fleet Rent a vehicle to a registered customer Receive rented vehicle back from customer Search vehicle database by any field: Model year + Make + Model name License plate number Customer number who is currently renting vehicle And print out all matching records оооо
Using Java, create a personal directory that contains a data structure for first name, last name, email address and phone number. The data structure should be able to contain the information for an unlimited number of people (depending on system resources).• The program interface should consist of a menu that provides the user with ways to (at least):▪ Add: Get data from user and add the data to the structure.▪ View: which will view the current data in the directory ▪ Edit/Update: Edit existing data ▪ Remove: Delete an entry▪ Search: which prompts the user for search criteria (program should be smart enough to know how to tell what kind of data is being searched for. Try to make this as versatile as possible). Display the data if found. If not found add the new information to the data structure (you must provide the right input for this).The program should store the data in a file so that the program can be run whenever the user wants, even after closing.• Your program should:▪ Contain…
Create a login application using java for accepting the dealer details.The application should accept the dealer details such asname, address, phone number and services offered by thedealer. The details should be recorded in a file.
//19. selectMenuChangeEventHandler//a. Dependencies: getUserPosts, refreshPosts//b. Should be an async function//c. Automatically receives the event as a parameter (see cheatsheet)//d. Defines userId = event.target.value || 1; (see cheatsheet)//e. Passes the userId parameter to await getUserPosts//f. Result is the posts JSON data//g. Passes the posts JSON data to await refreshPosts//h. Result is the refreshPostsArray//i. Return an array with the userId, posts and the array returned from refreshPosts://[userId, posts, refreshPostsArray] This is what I have but it fails help please const selectMenuChangeEventHandler = async (e) => { let userId = e?.target?.value || 1; let posts = await getUserPosts(userId); let refreshPostsArray = await refreshPosts(posts); return [userId, posts, refreshPostsArray];}
Course Title : Operating SystemQuestion : How you will create new user using terminal in Ubuntu? Add screenshots of all steps for new user creation including terminal and Login page in Answer sheet. Every student has to create new user as of his/her arid number for example (18-arid-2929). Note: screenshots are mandatory.