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- Computer Science Bash Assignment: Write a script that: Prompts the user for a directory name (Note that . means current directory) Lists the executable files contained in the provided directoryYellow – Represents whether the partition is bootable (00 means not active)Green – This is the starting head 20, cylinder 21 and sector 00 (in little endian) (not important because itlimited the theoretical disk sizes)Blue – Represents the filesystem (important) Red – Address of the end of the partition on the diskBrown/Green - Logical Block Address of first sector in the partitionPurple- The number of sectors on the drive in little Endian (we can calculate the correct drive size basedon this value if we know the sector size (512 bytes in this case)) How large is the partition (MB)? ___________________________________ {show your calculations} yellow{80} green{21 00} blue{07} red{DD 1E 3F} Brown/Green{00 08 00 00} purpule {00 AO OF 00}There may be times when a file's directory entry does not include a reference to the file's data blocks. What's the problem?
- Linux OS using terminal Create a directory and name it with any name you wish then enter the directory and create inside it a file then write a note about the weather, then add premissions to both directory and files; using absolute mode (octal) change the premission of the directory with 732 and finally change all permission file using symbolic mode.Computer Science Script 1: Hello World Open a new text editor file, such as Notepad or Notepad++, and enter Write-Host “Hello World!” Save this file as FirstScript.ps1 You can now call this script from PowerShell command prompt using the command: & "X:\FirstScript.ps1"You must right-click the disk name in Disk Management and select which of the following from the menu to initiate the import process? a) Find Disk to Import O b) Import Unknown Disk Import Foreign Disk d) Import Alien Disk e) Import Corrupt Disk f) Import New Disk g) Import Basic Disk
- Memory-resident package is the term given to software that has been loaded into the main storage area of a computer. explain?Directory and file are two types of files on a computer: one is a file and the other is a directory Do you think this statement is true, or do you think it's just a big lie?Machine problem: create a program to compress and decompress a file from flashdrive. you can use python, C, C++ language please put comments too, thank you.
- 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 sourceInstructions: 1. Read: Computer Security Fundamentals, 4th edition (Chapter Eight) 2. Answer: Answer the following questions: Question 3: Download and install the free Cryptainer LE from http://www.cypherix.co.uk/. This software sets up a 25-meg encrypted "virtual drive" on your computer using 128-bit Blowfish encryption. Take a text file and put it into the encrypted "drive." Click Unload. Then try to access the encrypted disk file using Notepad. Do you see any of the text here? Can anyone read a file in this virtual drive if your laptop were stolen? Individual Assignment 2 • Question 4: Briefly explain how Message Digest (MD5) works, its main strength and weaknesses, then compare between Message Digest (MD5) and SHA-256.After a filesystem is formatted on a hard disk drive, it must be used by all partitions on that hard disk drive. Is this statement correct or incorrect?