linux !#bin/bash Backup Files Write a bash script to backup files. The script can take 0, 1 or 2 arguments. When there are 0 or more than 2 arguments, the script should print out the usage of the program on the screen. When there is 1 argument, the program should take the argument as source directory and backup all the files (not include directories) in the source directory. If the source directory does not exist, the program should print out the error message and the usage of the program on the screen. If the source directory exist, create a subdirectory inside source directory named ”backup-yyyy-mm-dd” and copy all the files in source

Files and Exceptions 3 (VS Code Python) Assignment Objectives you must include the following techniques: Your program MUST USE the main function, which must be called correctly (use the template). Additionally, you must include docstrings as shown in the template. File Input File Output Opening Files Closing Files Using Loops to Process Files Processing Records Exceptions 3. Exception Handling Exceptions offer a gracious way to exit a program when things go wrong. Modify the program you wrote for exercise 2 to handle the exceptions (See 6.4 Exceptions on page 341). Test the program using the following text files: text file named 6-3-lines1.txt containing 22189239054920497120025457 text file named 6-3-lines2.txt containing 221892390549204971corn!57 Your program must: Open file designated by user input for reading Include a try block in the main function that holds most of the code from exercise 2. The try block must handle any: IOError exceptions are raised when an attempt is made…

Python files     develop a Python application that meets the requirements described below:   File manager: the user should be able to create folders and subfolders and should be able to copy and move files to the newly created directories. The user should be able to sort the directories. The user should be able to see what files are in a directory of choice.

File Move-Attached

Briefly explain floating-point exception

q14 :After you delete a file from your hard disk, it is automatically placed in the: * O Search box O USB flash drive O Clipboard Recycle bin q15 :The "Control Panel" is: * O A disk on which data can be stored. O Another term for a display screen. A computer network that spans a relatively small area. A system tool that allows a user to set certain settings.

It is recommended to use a ‘with’ statement when opening files so that ____.

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 C++, how do you encrypt one character in a file read into the code?

When a program makes use of a file, what are the three steps that it must take?