Write a script and save it as /opt/book/chapter10/exercise2. This script performs the following functions d. Counts backwards from 10 to 1 e. Displays the current number f. Pauses for 1 second between numbers Run the script in terminal using the command: bash /root/Desktop/exercise2
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Write a script and save it as /opt/book/chapter10/exercise2. This script performs the
following functions
d. Counts backwards from 10 to 1
e. Displays the current number
f. Pauses for 1 second between numbers
Run the script in terminal using the command: bash /root/Desktop/exercise2
Step by step
Solved in 3 steps with 1 images
- Please log in as “root” and create a new directory called “myScripts”on your desktop (i.e., /root/Desktop).Please leave a comment with your name at the end of each of your script files. You can use “#” to insertcomments in your script. Write a script and save it as /root/Desktop/exercise1. This script performs the followingfunctions:a. Asks the user for the length and width (in feet) of a rectangular roomb. Calculates the area of the roomc. Displays the result to the userRun the script in terminal using the command: bash /root/Desktop/exercise1 SO I HAVE WROTE THE SCRIPT BUT I DON'T KNOW HOW TO SAVE IT TO EXERCISE1 AND DISPLAY IT, JUST NEED TELL ME HOW TO DO IT , NO NEED SCRIPTIn termina, install the paho-mqtt module with pip using the following command: Sudo pip3 install paho-mqtt Create a new folder by the name of lab_6 and create a new python file mqtt_script_1.py In the file, TYPE the following code: import paho.mqtt.client as mqtt # The callback for when the client receives a CONNACK response from the server. def on_connect(client, userdata, flags, rc): print("Connected with result code "+str(rc)) # Subscribing in on_connect() means that if we lose the connection and # reconnect then subscriptions will be renewed. client.subscribe("etec224_mqtt_test/") # The callback for when a PUBLISH message is received from the server. def on_message(client, userdata, msg): print(msg.topic+" "+str(msg.payload)) client = mqtt.Client() client.on_connect = on_connect client.on_message = on_message client.connect("broker.emqx.io", 1883, 60) client.loop_forever() Create another file py and add the following code to it.…Below is server.py. Make sure the code works properly and is plagarism free. Make sure to show the screenshot of the output with the screenshot of the code being tested as plagarism free. server.py import socketimport sys def handle_client(client_socket): while True: command = client_socket.recv(1024).decode() if not command: break if command == 'quit': break elif command == 'put': receive_file(client_socket) elif command == 'get': send_file(client_socket) else: print("Invalid command.") break client_socket.close() def receive_file(client_socket): pass def send_file(client_socket): pass def main(): if len(sys.argv) != 3: print("Usage: server.py <port> <transport_protocol>") return try: port, transport_protocol = int(sys.argv[1]), sys.argv[2] except ValueError: print("Invalid port number.") return…
- Create an application that uses a socket connection to allow a client to specify a file name of a text file and have the server send the contents of the file or indicate the file does not exist. The server must contain a text based password file ("user name" & "password"). The client must pass a valid username and password to establish a connection with the Server (see Note 1). Notes: 1. A much better approach would be to encrypt the password file. The Java Cryptographic Extension (available since JDK 1.4) provides an API. Java Cryptography Architecture Reference Guide (JCA Guide): on oracle Introduction, Code Examples - Computing a Message Digest Object (i.e. one-way hash; using SHA-1) -Please ensure that it works need clear help compiling properly with no errors.Below is cache.py. Make sure the code works properly and is plagarism free. Make sure to show the screenshot of the output with the screenshot of the code being tested as plagarism free. cache.py import socketimport sys def handle_client(client_socket): while True: command = client_socket.recv(1024).decode() if not command: break if command == 'quit': break elif command == 'put': receive_file(client_socket) elif command == 'get': send_file(client_socket) else: print("Invalid command.") break client_socket.close() def receive_file(client_socket): pass def send_file(client_socket): pass def main(): if len(sys.argv) != 4: print("Usage: cache.py <port> <server_ip> <server_port> <transport_protocol>") return port, server_ip, server_port, transport_protocol = int(sys.argv[1]), sys.argv[2], int(sys.argv[3]), sys.argv[4]…Write a complete bash script that asks for a user name and uses the readcommand to accept the user name. (Use usernames C2456001 throughc2456030 to test.) The script reports if the user is logged in. Use the whocommand to obtain a list of users logged in then use grep in an if then elsestatement to match on the user name. Output whether that user is eitherlogged in or not logged in. (Usage: loggedIn.sh)
- You have set up a user group named Accounting and have put all employees in the Accounting department in this group, which has been given permission to use the Financial folder on a file server. You are now asked to create a subfolder under Financial named Payroll. Megan, the payroll officer, is the only employee in the Accounting department allowed to access this folder. What is the best way to configure the new share? a. Assign Megan read/write permissions to the Payroll folder, and explain to your boss that it is not a best practice to give only one employee access to an important folder. b. Assign Megan read/write permissions to the Payroll folder. c. Create a new user group named Payroll, put Megan in the group, and assign the group read/write permissions to the Payroll folder. d. Ask your boss to allow you to put the folder outside of the Financial folder so you can assign a new user group read/write permissions to this folder that will not conflict with the Accounting user group.MCQ: Which class waits for requests to come from the clients. It performs some operation based on that request, and then possibly returns a result to the client? DatagramSocket class ServerSocket class DatagramPacket class Socket classLINUX QUESTIONS: Write Linux command for each question. Please use one single command to do following process. Q1: Make a directory name “ET506" and "ET506HW"in your home directory. Q2: Make a filename call “myfile.txt” and "root_file.txt". Q3: Copy <myfile.txt> with name <myfile_1.txt> Q4: Move <myfile.txt> to the directory “ET506” with name <file.txt> Q5: Delete <file.txt> Q6: Delete directory <ET506HW> Q7: Rename <root_file.txt> to <root_new_file.txt> Q8: Create five files name “file1.txt”, “file2.txt”, “file3.c”, “file4.cpp”, “file5.html”. Q9: List all files end with “.txt” Q10: List all files contain “file” Q11: Move every file with name contain “file” to directory “ET506”
- You work for a small company that keeps the following information about its clients:• first name• last name• a 5-digit user code assigned by your company.The information is stored in a file clients.txt with the information for each client on one line(last name first), with commas between the parts. For exampleJones, Sally,00345Lin ,Nenya,00548Fule,A,00000Smythe , Mary Ann , 00012Your job is to create a program assign usernames for a login system.First: write a function named get_parts(string) that will that will receive as its arguments astring with the client data for one client, for example “Lin ,Nenya,00548”, and return theseparate first name, last name, and client code. You should remove any extra whitespace from thebeginning and newlines from the end of the parts.You’ll need to use some of the string methods that we covered in this lessonYou can test your function by with a main() that is just the function call with the argument typed in.Second: write a function make_user(param)…Write a bash script that will create another bash script and run it, the newly 4. generated bash script must ask the user for a command to run and then run that command.Bash Shell Scripting – Misc. Commands Create a bash script ~/test4.sh with any text editor. Write a bash script that does the following: echo "File Name: $0" echo "First Parameter : $1" echo "Second Parameter : $2" echo "Quoted Values: $@" echo "Quoted Values: $*" echo "Total Number of Parameters : $#" Take a screenshot of the console output. Run your scripts after doing a chmod 777 on the script. Open a terminal window and run the following commands: which gcc man gcc
