Write generalized bash-shell scripts that are able to work correctly on any Unix/Linux computer, with any user account, and starting from any working directorywithout any modification, to carry out each of the following tasks:c. Phone (phone):Write a shell script (called phone) that creates a simple telephone list (create an empty file called"phonelist" in your home directory: /home/user-name/phonelist). Each line in this file consists oftwo fields: a name and a phone number. The script shall do the following:When the user types the command: “phone -a(name, number) to the list. If the name or the number or both are missing, nothing happens.When the user types the command: "phone -g name" then the script should search in the file"/home/user-name/phonelisť and get and display all (name, number) entries matching thespecified name.3. When the user types the command: “phone -c number1 number2" then the script shouldchange the existing match of numberl in the file “/home/user-name/phonelist" to number2.4.1.name number", this will add a new record2.When the user types the command: “phone -d name number" then the script should deletefrom the file "/home/user-name/phonelisť all existing records that match (name, number).5.When the user types the command: “phone -d name" then the script should delete from thefile “/home/user-name/phonelisť all existing records that have a matching name.6.When the user types the command: “phone -d number" then the script should delete fromthe file "/home/user-name/phonelist" all existing records that have a matching number.7. When the user types the command: "phone" alone, or with no switch then the script shoulddisplay a list of all the (name, number) entries it finds in “/home/user-name/phonelist" file.

Phone (phone): Write a shell script (called phone) that creates a simple telephone list (create an empty file called "phonelist" in your home directory: /home/user-name/phonelist). Each line in this file consists of two fields: a name and a phone number. The script shall do the following: When the user types the command: “phone -a name number", this will add a new record (name, number) to the list. If the name or the number or both are missing, nothing happens. When the user types the command: “phone -g name" then the script should search in the file “/home/user-name/phonelisť and get and display all (name, number) entries matching the 1. 2.

Phone (phone): Write a shell script (called phone) that creates a simple telephone list (create an empty file called "phonelist" in your home directory: /home/user-name/phonelist). Each line in this file consists of two fields: a name and a phone number. The script shall do the following: When the user types the command: “phone -a name number", this will add a new record (name, number) to the list. If the name or the number or both are missing, nothing happens. When the user types the command: “phone -g name" then the script should search in the file “/home/user-name/phonelisť and get and display all (name, number) entries matching the 1. 2.

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

See similar textbooks

Similar questions

Word Puzzle GameIn this assignment is only for individual. You are going to decode the scrambled word into correct orderin this game. One round of play is as follows:1. Computer reads a text file named words.txt2. Computer randomly picks one word in the file and randomly scrambles characters in the wordmany times to hide the word3. Computer displays the scrambled word to user with indexes and gives the user options to1. Swap two letters in word based on index given2. Solve the puzzle directly3. Quit the game4. If a player chooses to swap letters, the computer reads two indexes and swaps the letters. Thegame resume to step 3 with the newly guessed word. If the resulted word after swapping is thesecret word, the game is over.5. If a user chooses to solve directly, computer prompts the user to enter the guessed word. If it’scorrect, the game is over, otherwise goes to step 3.6. After game is over, display how many times the player has tried to solve the puzzle.The following is sample…
This is for Java. Please help. Thanks
Write a program that opens a specified text file then displays a list of all the unique words found in the file. Hint: Store each word as an element of a set. 5. Word Frequency Write a program that reads the contents of a text file. The program should create a dictio- nary in which the keys are the individual words found in the file and the values are the number of times each word appears. For example, if the word "the" appears 128 times, the dictionary would contain an element with 'the' as the key and 128 as the value. The
>> classicVinyls.cpp For the following program, you will use the text file called “vinyls.txt” attached to this assignment. The file stores information about a collection of classic vinyls. The records in the file are like the ones on the following sample: Led_Zeppelin Led_Zeppelin 1969 1000.00 The_Prettiest_Star David_Bowie 1973 2000.00 Speedway Elvis_Presley 1968 5000.00 Spirit_in_the_Night Bruce_Springsteen 1973 5000.00 … Write a declaration for a structure named vinylRec that is to be used to store the records for the classic collection system. The fields in the record should include a title (string), an artist (string), the yearReleased (int), and an estimatedPrice(double). Create the following…
Python S3 Get File In the Python file, write a program to get all the files from a public S3 bucket named coderbytechallengesandbox. In there there might be multiple files, but your program should find the file with the prefix and cb - then output the full name of the file. You should use the boto3 module to solve this challenge. You do not need any access keys to access the bucket because it is public. This post might help you with how to access the bucket. Example Output ob name.txt Browse Resources Search for any help or documentation you might need for this problem. For exampler array indexing, Ruby hash tables, etc.
Assuming we have the following list: scientists = ["Galileo G.", "Charles D.", "Isaac N.", "Grace H."] And we want to add three more names: "Richard F.", "Marie S.", "Jocelyn B." Which of the following commands will work: Select one or more: a. scientists.append(["Richard F."]) scientists.append(["Marie S."]) scientists.append(["Jocelyn B."]) b. C. d. scientists.append("Richard F.") scientists.append("Marie S.") scientists.append("Jocelyn B.") scientists += ["Richard F.", "Marie S.", "Jocelyn B."] scientists.extend(["Richard F.", "Marie S.", "Jocelyn B."]) e. scientists.append(["Richard F.", "Marie S.", "Jocelyn B."])
1. The codewords will be scrambled words. You will read the words used for the codes from a file and store it into an array. There are 60 words in the file that range in size from 3 characters to 7 characters. The file is called wordlist.txt and can be found attached to the assignment in IvyLearn.2. Start with input for an integer seed for the random number generator. There is no need to put a prompt before the cin operation.3. Ask the Player if they are ready to play and only proceed if they type a Y or y. If the user types an N or n then the program should finish. a. INPUT VALIDATION: Make sure the user has typed either y, Y, n, or N4. Create a variable to keep track of the number of guesses the user has made.5. Use the random number generator to pick a word from the list of words.6. Once you have chosen a word as the codeword you will need to scramble the letters to make it into a code. You should use the random number generator to help you mix up the letters.7. Display to the user…
Create a file named Question.py and then create a class on it named Question. A Question object will contain information about a trivia question. It should have the following: A constructor, with the following parameters: 1 string to be the question itself (for example: "When was Cypress College Founded?"). A list of four strings, each a possible answer to the question (only one of them should be correct) An integer named 'answer': the index in the list of the correct answer. Example: if the third answer in the answer list is the correct one, the client should pass 2 to this parameter to signify the correct answer is in index 2. Overload the __str__ method. It should return a string made up of the question and the four possible answers. A ‘guess’ method, with an integer parameter. If the 'answer' attribute matches the int passed to 'guess', return True. Otherwise, False On Main.py, in your main function, create a list and add four Question objects to it. You may give them with…
Write a back–end class called CSVFileLoader and save it in a file called CSVFileLoader.cpp. This class must have the following structure:Private MembersData Type Name Descriptionboolean cFileReadSuccessful This member will indicate if the file-read operation was successful. Private MethodsReturn Type Method Signature Descriptionint determineNumberOfColumns(string fileName) This method must determine the number of columns in the file.Insert a debug instruction that will display the number of columns as the method exits.void splitData(string line, TUTCell data[]) This method must split the line into separate elements and store each element in the data[] array.Insert a debug instruction that will display the data content of each element as it is inserted into data[] array.Public MethodsReturn Type Method Signature DescriptionTUTTable loadFile(string fileName, string subjectCode) This method must load the data of the file into a table object. Only students with the same subject code as…
createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles. 2. Reads the profiles from the input file. 3. For each person in the file 1. creates a Profile object with the information from file (see input file format below). 2. insert the newly created profile into the next position in the database array (instance variable).
In this laboratory work, you are expected to write a c# console application to make some operations about the customers. Operations and required featurest that you need to cover in your program are following: • Add: This function adds a new person to json file. You need to get inputs from user and adds the new one into json file. • Display: This function displays all people in your json file. • Search: This function let you search with the user id. • Create Password: This function will create a random password for the user and user may choose the length of the password. Password may include numbers and characters. • Exceptions: You need to handle exceptions as well. You should at least handle 3 of exceptional cases. For the case that file can not be found, It is mandatory to catch the exception. Sample json string: "FirstName": "Kaan", "LastName": "OZAYDIN", "EmployeeId": 101, "Email": "", "Password": "Address": ( "ZipCode": "06460", "State": "Ankara", "Country": "Turkey" "FirstName":…
you have been asked by a computer gaming company to create a role-playing game, commonly known as an rpg. the theme of this game will be of the user trying to get a treasure that is being guarded the user will choose a character from a list you create create a character class, in a file named character.h, which will: have the following variables: name race (chosen from a list that you create, like knight, wizard, elf, etc.) weapon (chosen from a list that you create) spells (true meaning has the power to cast spells on others) anything else you want to add the treasure will be hidden in one of the rooms in a castle create a castle class, in a file named castle.h, that will: have these variables: at least four rooms named room1, room2, etc. moat (which is a lagoon surrounding a castle) which boolean (not all castles have them) anything else you want to add create a default constructor for each class that initializes each argument to a blank or false value create a second…