Write two scripts called encryption and decryption. Test both scripts by encrypting a file called file1 and save the result in file2. Then use file2 as the input to the decryption script and check if the output is the same as file1.

The Problem: There's no shortage of people who have a great idea abouthow to speed up the build. They have all sorts of reasons why their pet idea willlet you complete a five day build in 3.8 seconds.For example, the gcc compiler has the -pipe option. Normally thecompiler will run the first pass of the compiler and write the output to atemporary file. Then pass 2 will read this file and write a second temporary. Andso on for however many passes are needed.With the -pipe option every pass is run at the same time the output of oneconnected to the input of the next through a pipe. The theory is that by doingthis you eliminate the temporary file, the disk I/O for the temporary file and doeverything in memory.So the -pipe option must make things faster. And if we needed moreconvincing we can take a look at the kernel Makefiles and find that the option isused there and if the Linux kernel uses it, then it must be good.

Write a shell program that renames all files in the current directory. It should remove all vowels from the filenames. For example, apple.txt should be renamed ppl.txt. If the resulting filename is an empty string, then the file should not be renamed.

Please answer the following Bash question, please show your output as well. 1. Write a Bash function named ‘Generate-ID' that generates all possible UGA student id start with 900. The output should be saved into a file named studentID.csv. 2. Write a Bash function named ‘Find_word’ that read wordlist.txt file to find all words end with “ing” and output these words to WordEndIng.csv. 3. The auth.log file (path: /var/log/auth.log) and syslog file (path: /var/log/syslog) are two of the most important log files in Linux. Generally, adversaries target these files so that system administrators couldn’t track what attackers are doing. Write a function named get-linuxlog() that reads all the above two files and stores them into a file named linuxeventlog.txt (Hint use the ‘cat’ command)

I need help with my code i need to ask the user for a filename. Display the oldest car for every manufacturer from that file. If two cars have the same year, compare based on the VIN. my code is not working properly, it is just dipslaying exactly what is in the file that the user inputs  here is the code import java.io.BufferedReader;import java.io.FileReader;import java.util.Comparator;import java.io.File;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Collections;import java.util.Scanner;class Car {private String makeModel;private int year;private String VIN;public Car(String makeModel, int year, String VIN) {this.makeModel = makeModel;this.year = year;this.VIN = VIN;}public String getMakeModel() {return makeModel;}public int getYear() {return year;}public String getVIN() {return VIN;}}class Assignment8_2 {private static int minIndex(ArrayList<Car> cars, int i, int j) {if (i == j)return i;int k = minIndex(cars, i + 1, j);if…

help me rewrite the code without using bufferReader please

Alice used a password to create a zip file secret.zip which contains only a secret.txt file. The secret.txt file contains really important information that Alice would like to access. Unfortunately, Alice forgot the password she used to create the zip file. Alice only remembers that the password is a six-digit password.Given the secret.zip file, you are asked to help Alice to recover the password with an implementation in Python.

You shall implement a Microshell, “MSH”.  MSH shall provide the following functions: Provide a shell-like interface for launching new programs: When MSH starts running, it will print a prompt "cssc0000% " (replace cssc0000 with your username) and then wait for the user to type in a file name. Note, MSH will NOT have any shell built-in functions (such as cd, setenv, printenv, bg, fg, etc), with the exception of #5 (below). When the user enters a filename and hits the “enter” key, MSH then reads the filename entered and determines if the file is an executable file. If it isn't, MSH will print a useful error message to the user and then return to #1 above (display a new prompt and wait for user input). If it is an executable file, then MSH will create a new process and run this program in the new process. Note – you will need to determine whether the filename is a fully qualified path name or if the file needs to be searched for (fully qualified pathnames begin with a slash (i.e. "/"),…

How do we tell the bash shell to set the primary prompt?

Write a java code. Create a new text file (.txt) in your computer from your java program. Use FileOutputStream class to write the content into this new text file. The content into this file should be written from the existing text file in your computer. Use FileInputStream class to read the content from the existing text file.