How can I restrict output of /passwd to the first two fields? Ubuntu Linux is a flavor of Linux.

Problem 2. Rob has successfully installed Spark in Ubuntu. He also runs the WordCount example successfully. He now can start understanding each line in the WordCount.py file. He opens the pyspark shell. Suppose that the Spark context "sc" is already defined when he opens the shell. He wants to load the data "/home/rob/data/peterpan.txt". The command he uses is $ book = sc.textFile("/home/rob/data/peterpan.txt")

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.

Using 'import threading' and 'import socket' create a simple and functional Python chat application. Provide an example by creating a server.py and client.py class that allows two clients to connect to one server. Please create your own code and not copied from past questions. As someone whose still brand new to Python, include comments and screenshots. Try to have the code run in the command prompt.  Server can allow the clients to input their own usernames.  Once the server receives the message from a client, it will forward the message to the intended client and vice-versa.  A client can disconnect from the server by sending “.exit” message anytime. Server upon receiving “.exit” message from the client, will close the connection with it.

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. "/"),…

write  a program that displays a list of Students + Classes +schdeule of classes + Grades   in Linux      in the end, show what codes you use to write the program

Executables in Linux are called what ?   a. ELF files b. Executables c. Binaries d. MSI Files

Can someone help me answer this

using Linux/Unix, please 1. Create this sample file, you can call it studentGradesJohn Doe 3.54 ECEJames Davis 3.71 ECEAl Davis 2.63 CSAhmad Rashid 3.74 MBASam Chu 3.68 ECEArun Roy 3.06 SSRick Marsh 2.34 CSJames Adam 2.77 CSArt Pohm 4.00 ECEJohn Clark 2.68 ECENabeel Ali 3.56 EETom Nelson 3.81 ECEPat King 2.77 SSJake Zulu 3.00 CSJohn Lee 2.64 EESunil Raj 3.36 ECECharles Right 3.31 EECSDiane Rover 3.87 ECEAziz Inan 3.75 EECSLu John 3.06 CSLee Chow 3.74 EEAdam Giles 2.54 SSAndy John 3.98 EECS The file above contains student records. Use a command line to display the records for the top five students in descending (sorted) order, i.e., with the highest GPA student’s record displayed first. Show your session