QUESTION 15 The root directory of the filesystem is the one directory with no parent directory. True False QUESTION 16 Linux filenames are not case sensitive, i.e. a file named "file1" is not differentiated from a file named "FILE1". True False
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- When working with this type of file, you can jump directly to any piece of data in the file without reading the data that comes before it.a. ordered accessb. binary accessc. direct accessd. sequential accessInstructions Add a command to this chapter’s case study program that allows the user to view the contents of a file in the current working directory. When the command is selected, the program should display a list of filenames and a prompt for the name of the file to be viewed. Be sure to include error recovery in the program. If the user enters a filename that does not exist they should be prompted to enter a filename that does exist. An example of the program input and output is shown below: /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6 Search for a file name 7 View the contents of a file 8 Quit the program Enter a number: 7 Files in /root/sandbox: filesys.py example.txt Enter a file name from these names: example.txt THIS IS CONTENT OF AN EXAMPLE FILE. /root/sandbox 1 List the current directory 2 Move up 3 Move down 4 Number of files in the directory 5 Size of the directory in bytes 6…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 necessary bash code to continuously display the main menu that contains the following tasks: User Group File Process Exit upon choosing one of the first 3 options, a sub-menu is displayed. File Menu: count words of a file count characters of a file compute word average length by dividing the number of characters by the number of words in a file. count lines of a file display a set of rows from the beginning of a file. change permission for a file (for the owner, group, and others with rwx permissions both ways symbolic and numeric) Return to a previous menu User Menu: Create a new user delete a user change the password add a user to a group delete a user from a group list who is currently logged in change the permission of a user list groups of a user Block a user Count the number of users in the system. Generate a strong random password for a user. Return to the previous menu Group Menu: Add a group delete a group List groups Add a user to a group delete a…POWERSHELL TASK Try to multiply two numbers stored into a file and the file name should be a command-line argument.376. Files often used with sequential access storage media are called a. Linear access files b. Procedural access files c. Sequential access files d. Structural access files
- 377. File access type supported by most modern operating systems are said to be a. Sequential access files b. Random access files c. Structural access files d. Direct access filesWhen working with this type of file, you access its data from the beginning of the file to the end of the file.a. ordered accessb. binary accessc. direct accessd. sequential accessProg 1. File Encryption: File encryption is the science of writing the contents of a file in a secret code. Your encryption program should work like a filter reading the contents of one file, modifying each character in the input file into a code, and then writing the coded characters out to a second file. The second file will be a version of the first file but written in a secret code. In Notepad or something similar, you will create a file with text in it. It should be several lines long. Your program should read the file character by character and make some change to the character before writing that character to a second new encrypted file. See program 13-8 to see how to read and write one character at a time. You may come up with an encryption technique of your own or use something simple like adding 10 to the ASCII code of each character in the file before it is written to the second file.
- Trusted Edit View Insert Cell Kernel Widgets Help Run Code Slide Type Fragme • Exercise # 1 Write a program that reads a file containing text. Read each line and send it to the output file, preceded by line numbers. Slide Type • If the input file is Mary had a little lamb Whose fleece was white as snow. And everywhere that Mary went, The lamb was sure to go! Slide Type • then the program produces the output file: /* 1 */ Mary had a little lamb /* 2 */ Whose fleece was white as snow. /* 3 */ And everywhere that Mary went, /* 4 */ The lamb was sure to go! Slide Type • Prompt the user for the input and output file names.Explain in detail what you consider a file extension to be and what function you think it fulfills. Go to a random folder on your computer and name three file extensions you see there, as well as any software programs that may have produced them. Most file extensions should be shown by simply right-clicking on a chosen file and choosing properties from the pop-up menu (Microsoft Windows environment).The Master file mainly contains data that is unchangeable.