Can you tell the what are the purposes of up, run, and start commands of docker compose?
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Can you tell the what are the purposes of up, run, and start commands of docker compose?
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- We will use the file classlist.txt. Note that it contains a list of usernames. 3. Write a script called finduser that is to be called as follows, where classlist is the name of the classlist file, and username is a particular student's username, either first name or last time. ./finduser classlist username The script should check that the correct number of arguments was received and print an error message if not, check whether the classlist file exists and print an error message if not, print the line of the given username in the classlist file If you have not been doing so all along, you should now add some comments to your script and thoroughly test it! 4. Write the script into your lab report.What is the difference between using +/- versus = when setting file permissions? Is there any benefit of using = instead of +/- too set permissions?Scenario: You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLs present in that page, and then recursively fetches new pages using the extracted URLs. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLs or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types.
- Please use C++ and Linux ! Convert the Node struct in the sample code sample code(parsetool.h) to a proper class named XMLNode. Think about what additional methods and helper functions you might need and create prototypes for those too. Make sure to include comments in the .h file specifying the purpose, input, and output, of each function. Submit your .h file here. The code resource is here: //drive.google.com/drive/folders/1NhEKOOJBs-GE8HW6Z5eM-5bJ2KmOtU4P?usp=sharing parsetool.hhttps: #ifndef _PARSETOOLS_H_#define _PARSETOOLS_H_ #include<string>#include<map>#include<vector> using namespace std; struct Node { string name; // name of the node map<string, string> properties; // any properties found in the node start tag string content; // if the node has content between the start and end tag, put it here vector<Node*> children; // if the node has children, create new Nodes and store their pointers here }; Node parseline…In this assignment, you will implement the shell “engine” as the “group” component, where all members are responsible for the following functionality: • A Command-Line Interpreter, or Shell Your shell should read the line from standard input (i.e., interactive mode) or a file (i.e., batch mode), parse the line with command and arguments, execute the command with arguments, and then prompt for more input (i.e., the shell prompt) when it has finished. 1. Interactive Mode In interactive mode, you will display a prompt (any string of your choosing) and the user of the shell will type in a command at the prompt.Design a Client class that interfaces with your SQLDatabase Server (from the class Server). The Client sends a SQLQuery to the SQLDatabase and receives a Dataframe from the SQLDatabase. Your class should contain the default __dunders__ and potentially introduce some custom __dunders__. classServer.py (Just change if this file has something doesn't run or doesn't fit with new code) import sqlite3import pandas as pdclass Server:def __init__(self, db_name):self.db = sqlite3.connect(db_name)self.cursor = self.db.cursor()def __enter__(self):return selfdef __exit__(self, exc_type, exc_val, exc_tb):self.db.close()def create_table(self, table_schema):self.cursor.execute(table_schema)self.db.commit()def insert_data(self, table_name, data):for i in range(len(data)):keys = ", ".join(data.columns)values = ", ".join([f"'{value}'" if pd.isna(value) else str(value) for value in data.iloc[i]])self.cursor.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values})")self.db.commit()def…
- Question 7. Debugging Source Code: Which of the following strategies could a developer use to debug source code? Answer all those that apply. a. Talk to other developers. b. Follow Coding Conventions. c. Follow code comment conventions. d. Extract build files. e. Use test and m_Trace flags. f. Use accessor methods. g. Review terminating conditions of FOR loops.The databse system has a database called online shop. What is a result of a CREATE statement that tries to create OnlineShop a second time? A)The statement replaces OnlineShop with a new OnlineShop database. B)The statement produces an error that the database already exists. C) The statement creates a copy of the database OnlineShop as onlineShop_1 D) The statment is ignored.Implement a simple version of the linux grep command in C++. grep - Looks through a file, line by line, trying to find a user-specified search term in the line. If a line has the word within it, the line is printed out, otherwise it is not. Use the system calls open(), getline(), close(). Requirements (examples run from. terminal) Your program grep is always passed a search term and zero or more files to grep through (thus, more than one is possible). It should go through each line and see if the search term is in it; if so, the line should be printed, and if not, the line should be skipped. [terminal]$ ./grep ! main.cpp main2.cppcout << "Hello, World!";cout << "Programming is great fun!"; The matching is case sensitive. Thus, if searching for world, lines with World will not match. Lines can be arbitrarily long (that is, you may see many many characters before you encounter a newline character, \n). grep should work as expected even with very long lines. For this,…
- Use an IDE for this assignment and create a package called ER – put the three files in the package. In this assignment, you will create an application that will simulate the patients in an emergency room and how long they wait before they are seen. Every patient is assigned a priority from 1 to 10 (1 is the most important and 10 is the least important). The patients will be read in from the file PatientData.txt which has each record (line) as icetlame, lastNamE, patientlR, year, month, day, priority Create classes as follows Patient with 4 attributes - firstName, lastName, patientID (7 digits, cannot begin with 0), DOB. Add constructors and other methods. ERCase with 3 attributes – Patient, priority, timeWaitiog, Add constructors and other methods. This class must implement the interface Comparable and implement the method public int compareTe(ERCase c) EmergencyRoom- uses a Priority Queue to manage the patients in the ER waiting room. Add 5 cases to the Priority Queue at the start of…Create a new C++ project in Visual Studio (or an IDE of your choice). Add the files listed below to your project: BinaryTree.h Download BinaryTree.h BinarySearchTree.h Download BinarySearchTree.h main.cpp Download main.cpp Build and run your project. The program should compile without any errors. Note that function main() creates a new BST of int and inserts the nodes 12, 38, 25, 5, 15, 8, 55 (in that order) and displays them using pre-order traversal. Verify that the insertions are done correctly. You may verify it manually or use the visualization tool at https://www.cs.usfca.edu/~galles/visualization/BST.html. (Links to an external site.) Do the following: 1. add code to test the deleteNode and search member functions. Save screenshot of your test program run. 2. add code to implement the nodeCount member function of class BinaryTree. Test it and save screenshot of your test program run. 3. add code to implement the leafCount member function of class BinaryTree. Test it and…Consider the data contained in the text file data1.txt. The first row of this file contains the column names. The remaining rows have one number for each column. The numbers are separated by a tab character. You can work in your command window. No need to create a matlab file for this question. Download the data file. Use importdata() function to load data into Matlab. What is the average of the numbers contained in the third column of this data? Data1: col1 col2 col3 col4 col5 906 552 743 348 45 676 229 425 661 558 469 642 430 384 773 913 485 125 628 312 105 152 25 22 179 746 782 291 911 339 737 101 318 801 211 562 295 654 746 511 185 238 957 814 907 598 531 936 384 629 300 92 458 618 102 135 406 241 576 391 213 105 764 531 55 895 113 760 276 502 72 785 741 249 432 243 292 744 452 998 54 604 106 228 812 442 965 682 805 486 14 433 464 987 895 898 695 213 30 138 197 759 99 536 391 94 433 824 88 928 308 656 176 803 918 457 110 164 990 714 102 934 666 67 619 996 188 895 940 344 333 267…
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