Show the txt files. Create a new directory. In the new directory, create a new file. In the newdirectory, create a symbolic link to the new file with its relative path. Test that thelink is really working by 'cat'ing the symbolic link. Use the my command to movethe symbolic link to another directory (either the parent or a new subdirectory.Will the symbolic link still work? Explain why or why not. What would happen ifyou used a hard link? Explainthe owne of your test.txt

AnswerStep - 1) Creating New Directory named practice1. To create a new directory in linux we use…

Answered: Create a new directory. In the new…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Please help me by suggesting the steps I should take For this assignment, you will need two sessions open (e.g., a pair of ssh sessions, or a pair of xterms), one for answering the questions, and one for experimenting with different commands to see if they represent the correct answer. When you are satisfied with one of your commands, copy and paste it from your “experimental” window into your “question and answer” window. In either window, create a directory ~/UnixCourse/commandsAsst. Use cd to make that new commandsAsst directory your current working directory (in both of your session windows). For the remainder of the assignment, you should not cd into a different directory. In one window, give the command ~cs252/bin/basicCommandsAsst to start the assignment. This will place some files into the fileAsst directory from the prior assignment. Some of these will be text files (recognizable as such because their names end with “.txt”) and some are data files (named ending in…
You will develop a client side and a Servlet program that will work with a database. 1. The client (front end) should have a title “NJIT Credit Union”, centered. 2. The client should have a background color. 3. The client should have a text field with label ‘UserID' where user will enter userID (integer) and a Submit button with text "Submit". 4. An unsuccessful authentication should have a message printed on the screen, in red, stating that "Your authentication has failed, please try again." (no pop up message). At this point the text field should get cleared and ready to accept a new input. Your program should not exit. 5. A successful authentication should be followed by a message on the screen, in green, stating that "Your authentication is successful" (no pop up message). 6. There should be two other text boxes with label "Deposit" and "Withdraw" where user will enter an amount (you should accommodate for decimals). These two text boxes should only be enabled after successful…
2. Start with an empty buffer pool of size 4 pages again. This time use this access pattern:♯SAGLIKLIMUTLUBAYRAMLAR♯. At the end of accessing all the pattern, what is the content ofthe buffer pool (write in alphabetical order)? Use the LRU algorithm as the buffer replacementpolicy.
How to write a rule in YARA that iterates over sections in a PE file? In this rule I need to confirm that there is a match that one section name == "burger" and another section name == "malware". Please help.
Write the command to create a symbolic link to a file called lnkfile3. Call the link lnkfile4.
Create an object of MessageDigest class using the java.security.MessageDigest library. Initialize the object with your selection for an appropriate algorithm cipher. Use the digest() method of the class to generate a hash value of byte type from the unique data string (your first and last name). Convert the hash value to hex using the bytesToHex function. Create a RESTFul route using the @RequestMapping method to generate and return the required information, which includes the hash value, to the web browser. Here, is the code to edit package com.snhu.sslserver; import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController; @SpringBootApplicationpublic class ServerApplication { public static void main(String[] args) { SpringApplication.run(ServerApplication.class, args); } }…
This is not a graded question. Add the things in the picture to the zip file link give below(make sure you extract the file so that you can work in it) and send the the whole which you end up with. Question: add a win state(so that when you reach end of level, it shows you win), add a lose state(so that when enemy kills you, it shows you died), add title state( when you enter the game ot should show the title of the game which can be anything you want, and when you press 1, the game will start). These are a few things so I don't think it will be hard. https://drive.google.com/file/d/1oCYLUKGe59WUpF_p2FVyj2-WhkwDaFQS/view?usp=drivesdk
It's time to implement an API. We’ll use express to do this. Replace the http module in your existing server with express. We know from our studies that we need routes to respond to client requests. For this assignment, we're going to create a route that responds to request from a front-end for a user's placing coffee orders. In your, project folder, create a new folder called “routes”. Create the following js file in this folder:orders.jsNow, let’s implement the routes. In your routing files, implement the following routes: GET /products Returns all products as json You should create a new module called product-manager that returns fake products and is used by the route.POST /orders/ The HTTP Request body contains the JSON with the data to representing a new order. An order should contain the data defined in the Order class you created last week. In the route, you will need to use your OrderManager module to store the order. You will need to…
Modify rnfile such that it will keep a copy of the old existing file (if available) before the renaming operating. Assume that apple.txt will be renamed as orange.txt. When the command “./rnfile apple.txt orange.txt” is executed, the script will first check whether orange.txt exists under the given path or not. If the file exists then orange.txt will be renamed as orange.txt_old before renaming apple.txt as orange.txt. Make rnfile an executable shell script; try to rename a file to a filename that already exists. Show your shell program and its output to the instructor.
Consider another carelessly written web application which uses a servlet that checks if there was an active session but does not check if the user is authorized to access that page, instead depending on the fact that a link to the page is shown only to authorized users. What is the risk with this scheme? (There was a real instance where applicants to a college admissions site could, after logging into the web site, exploit this loophole and view information they were not authorized to see; the unauthorized access was, however, detected, and those who accessed the information were punished by being denied admission.)
Explain the difference in file size between a symbolic link and the target file?
4. Be able to save a FriendsDB to a file. Add a method save() to the FriendsDB class, which takes a filename as an argument and saves all of the friends in the database to the specified filename. The file will contain one line per friend in the database, and each line of the file will contain that friend's name, followed by a tab, followed by their height, a tab, and then each of their favorite foods (separated by tabs), and finally a newline character. So for example a FriendsDB file with two friends, bimmy (height 60, favorite foods "falafel" and "vegemite") and eliza (height 170, no favorite foods) would contain lines equivalent to the following two strings. "bimmy\t60\tfalafel\tvegemite\n", "eliza\t170\t\n"|

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