The "-t" flag to "ls" sorts the listing by modification time. Write a BASH line which will write the name of file with the oldest modification time into a file called "lastfile".
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The "-t" flag to "ls" sorts the listing by modification time. Write a BASH line which will write the name of file with the oldest modification time into a file called "lastfile".
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- >> 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…write the code to lookup, add and remove phoneentries from the phonebook text file . These are the code we use for the lookup, add and remove in the case statement.(Lookup)# Look someone up in the phone bookgrep $1 phonebook (add)echo "$1 $2" >> phonebooksort -o phonebook phonebook (Remove)grep -v "$1" phonebook > /tmp/phonebookmv /tmp/phonebook phonebook Write a complete Bash script which will accept up to three command-line arguments: the first one is either (lookup, add or remove), the second one is a name enclosed in single quotes and the third one (if doing an add) is a phone number enclosed in single quotes. Using a case statement to match on either lookup, add or remove, the script should then perform the requested operation. Again here, you should first check for null arguments before continuing with the rest of the script or requested operation. In addition, the person may not be in the phonebook for lookup or remove so, you need to account for this.Comment block: Set up comments using the standard format in a <# and #> container, which should contain a synopsis, description, and at least one example which shows how to run the script. Set up an array: Put values in the array $ComputerNames, containing the names of two computers: DC1 and W10-CLIENT. Prompt for user's name: Use the text Please enter your first name, store the value the user will provide in a variable named $FirstName, and write out the text Hello followed by a space, followed by the name entered. Prompt for report type, and store value provided: Ask the user to enter AD if the information on Active Directory Users is required, and WMI for Windows Machine Instrumentation. Store the answer provided in variable $ReportType Confirm report selection: If an Active Directory report was requested, on a new line print the message "A list of all AD users was requested for computers " followed by the contents of the $ComputerNames array. If a Windows Machine…
- PHONE DIRECTORYDescription: Create a phonebook directory that will store the contact numbers of N persons. Your program should allow the user to add, view, delete, and update the contacts in the phonebook. Note that one person can have multiple contact numbers. The program will stop when the user command is ‘X’. Program command and entry should not be case-sensitive. That means commands ‘I’ or ‘i’ and the name “Jacky” or “JACKY” are the same. Each contact number can be 7 digits or 11 digits only. The user should input a string containing the command, name, and contact number(s) (Limit the contact number of each person to three). This string should be broken down into fields in order to separate the different values and store them in their appropriate variables. Use linked list in the implementation. Your node must declare at least four instance variables. Program flow: Command> I Jacky 09211234567 Remarks: New contact has been added. Command> V Jacky Contact…When it loads, the list of car objects should be created by reading from the above file. When Add Car button is clicked the following screen should appear: a Add a New Car Model: Year: Çolor. Mleage: Cancel Add When the user fills out new car information and clicks "Add", the new car object is created, the form is closed, so that the main form is shown again, and the newly created car object is added to the list of cars. When "View cars" button is clicked, the following form shows, displaying all car objects currently in the list (use Getlotel) function here. You will also have to send the list of cars from the main form to tis form. To do this in the view form have a public variable for list of cars, and assign to it the list of cars from the main form). ag View Cars Model: Accord, Year.20166 Year. 20166, Color: Blue, Mieage: 0 Model: Passat, Year:2014 Year: 2014, Color: White, Mileage: 20000 CloseWrite a statement that creates an array of three string values that is referenced by the fullName variable. Using string values for a first, middle, and last name, create an initialization list for the array.
- Finish this program from the code posted below! Note: There should be two files Main.py and Contact.py You will implement the edit_contact function. In the function, do the following: Ask the user to enter the name of the contact they want to edit. If the contact exists, in a loop, give them the following choices Remove one of the phone numbers from that Contact. Add a phone number to that Contact. Change that Contact's email address. Change that Contact's name (if they do this, you will have to remove the key/value pair from the dictionary and re-add it, since the key is the contact’s name. Use the dictionary's pop method for this!) Stop editing the Contact Once the user is finished making changes to the Contact, the function should return. Code:from Contact import Contactimport pickledef load_contacts():""" Unpickle the data on mydata.dat and save it to a dictionaryReturn an empty dictionary if the file doesn't exist """try:with open("mydata.dat", 'rb') as file:return…Your goal is to implement an application that reads a file, modify its content, and writes the modification back to the same file. The file includes 2 lines of integers. The first line indicates which integer on the second line has been selected (active). And the second line lists all the integers in the list (maximum of 10). Your application should have a menu that is constantly displayed on the screen (see the menu below). Right below the menu, the program should display list of all integers in the file (second line). Also, it should show which integer is currently selected (active) by displaying an arrow to its left. The user should be able to select a menu item by entering its associated key and pressing the Enter key on the keyboard. “Select Down” selects the next item in the list. If the item at the end of the list is selected, this option selects the first item in the list. “Select Up” selects the previous item in the list. If the first item is selected, this option selects the…File names: color_square.py, chessboard.py, test_squares.py Positions on a chess board are identified by a letter and a number. The letter identifies the column; the number identifies the row. See the image below. You will provide the functions that allow us to determine: if a chessboard square is either black or white, given its coordinates. If the row/column is valid or not for the standard chessboard For example, if we pass in “d” for the column and 4 for the row, your function that determines color should return the string: “BLACK”. If we pass in "k" for the column to your function that validates columns, that function should return the boolean False. Requirements: Your function for validating the column should be able to accept upper or lowercase strings as parameters. Your functions for validating the row should be able to accept integers or strings as parameters. Your function that determines black-or-white may assume that the input has been validated prior to us calling…
- Case Problems - 1- In Chapter 8, you modified the EventDemo program for Carly’s Catering to accept and display data for an array of three Event objects. Now, modify the program to use an array of eight Event objects. Prompt the user to choose an option to sort Events in ascending order by event number, number of guests, or event type. Display the sorted list, and continue to prompt the user for sorting options until the user enters a sentinel value. Save the file as EventDemo.java.Problem Statement Given a text file of Zoom users wanting to attend a meeting, filter out a list of users with the domain name @my.fltech.com or @fltech.edu. Then print the list with names (last name, first name) of those with authenticated tech email. Print one name in each new line. Note: the file name is not given by "input()". Instead, assume a file named "zoom_attendees.csv" is available that you need to open/use. Sample Input: zoom_attendees.csv Jackson,Thompson,jackson.thompson@fltech.edu Mines,mines,luke.wallace@lycos.com David,Wright,david.wright@fltech.edu Nathaniel,Butler,nathaniel.butler@aol.com Sample Output Thompson, Jackson Wright, DavidA Comma Separated Value (CSV) text file called movies.txt is located in the directory of your Eclipse Project.( If your Eclipse Project name is Assignment2, the text file is located under Assignment2, NOT src folder) It contains data for one movie on each line.Each Movie contains the following data items:Title(String), Year(int-4 digits), Runtime(double). Example: Gemini Man,2019,1.97 Mortal Engines,2018,2.01 Write Java program(s) to do the following:1) Read the movies.txt Text file and write the data as a Serialized file called movies.ser to the local directory(same as movies.txt).2) Read the movies.ser serialized file and output the data on to the Console in the format shown below. NOTE: DO NOT just write out the data from movies.txt using System.out.println(). This will receive no credit. You MUST read the data from the movies.ser file and output the data.We will check the movies.ser file for grading. The spacing for the output is: Title(20), Year (8) and Runtime (10.2)Title and…