Describe the various classes available for file operations
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Describe the various classes available for file operations
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- This is the most effective file organization method in which one must handle all data records in a file namedComputers Science File System Interface Some of the systems automatically open a file when it is referenced for the first time and close the file when the job terminates. Discuss the advantages and disadvantages of this scheme compared with the more traditional one where the user has to open and close the file explicitly.what is file handling
- C++ Program and Algorithm File System ShellOverview Sky Electric Company, Islamabad has hired you as a software engineer. The company has asked you to develop a software solution to manage the log files generated by their systems. The log files contain the technical details of the issues encountered during operation by the respective systems.You have gathered the following information after interviewing the support staff of the company:1) There are different categories of log files, e.g. Voltage Log, Power Outage Log, etc. 2) The company wants to be able to:a. View the file directory tree in different ways (Pre Order, In Order, Post Order, Level Order, and Tree View).b. Search a specific log file using quick search interfacec. Merge two directoriesd. Add a log file/directorye. Delete a log file/directoryf. Calculate size of a given log file/directoryYou have decided to develop a “File System Shell” to keep track of the log files and provide the requested features. The File System Shell…File extensions will be defined in this article, along with the programs that produced them. It is important to provide specific examples.This article defines file extensions and describes which software programs generate them. It is critical to offer instances of what you are discussing.
- File Attributes 5. File attributes (a) File name: file name is a very important file attribute When a file changes name, it seems to change its identity (just like when you change your name) The oldest file naming we may remember is the 8 +3 convention in DOS (in DOS, all file names can NOT be bigger than 8 characters, special characters like spaces were not allowed etc.). So a file like C:\\Program Files\\Adobe\\Photoshop can cause problems in DOS, and it has to be represented in different ways using strange character like~ (tilde). Elaborate on your understanding of file names or file naming in different operating systems (Windows, Mac, Linux etc.). For example, some OS like NTFS may allow longer file name, allow space, and even allow non English like characters such as Chinese file names. Is there a maximum length of file names (can you have a file name of 1,000 characters long?) (b) File creation date and modification date. File can be created and modified using different ways of…Write a C or C++ Program and Screenshot the following system call operation File Management File management system calls handle file manipulation jobs like creating a file, reading, and writing, etc. Functions: Create a file Delete file Open and close file Read, write, and reposition Get and set file attributeswhat is the use of ''w'' in file handling ?
- C++ Assignment Setup Part 1: Working With Process IDs Modify the getProcessID() function in the file named Processes.cpp The function must find and store the process's own process id The function must return the process id to the calling program. Note that the function currently returns a default value of -1.Hint: search for “process id” in the “System Calls” section of the Linux manual. Part 2: Working With Multiple Processes Modify the createNewProcess() function in the file named Processes.cpp as follows: The child process must print the message I am a child process! The child process must then return a string with the message I am bored of my parent, switching programs now The parent process must print the message I just became a parent! The parent process must then wait until the child process terminates, at which point it must return a string with the message My child process just terminated! and then terminate itself. Hint: search for “wait for process” in…In python file operations, ( )mode is used for creating a new file.Objective: Practice file handling Lab Description: Write a python script (with comments) that computes the average score for an unknown number of students in a file. Specifically, your script should: Ask for a filename name (that has scores in it) Open the scores file Verify the scores file opened correctly Read the student's name and their four scores Display the student's name, all of their scores and their average to the screen Writes the students name and the scores' average to a file name "averages.csv" Close both files For example, the following are examples of correct execution (with the text in bold being the input from the user): Input file project4-inputA.txt: Output to the screen: Output file "averages.csv" Мary 76 89 82 100 Joey Please enter the scores filename: project4-inputA.txt # Student name, grade average You entered project4-inputA.txt Opened scores file project4-inputA.txt Mary scores: 76.0 89.0 82.0 100.0 average: 86.75 Joey scores: 91.0 81.0 83.0 95.0 average:…