Introduction to Linux, Pico, G++
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This document provides an overview of using Linux and programming in C++ for a CS111 lab. It introduces Linux commands like mkdir, cd, ls, cp, mv, and rm. It describes using the text editor Pico to write C++ code, compiling code with g++, and executing the resulting a.out file. Key steps covered are creating directories, changing directories, listing files, copying/renaming/removing files, writing and editing code in Pico, compiling code, and running the executable.
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Lab 3 -Linux Files, Directories and Basic Commands.pptx
Lab 3 -Linux Files, Directories and Basic Commands.pptx
Lab 3 -Linux Files, Directories and Basic Commands.pptx
More from Michael Gordon
Raspberry Pi presentation for Computer Architecture class
Raspberry Pi is a low-cost computer developed by the Raspberry Pi Foundation to promote teaching computer science in schools. It uses a Broadcom BCM2835 system-on-a-chip with a 700MHz ARMv6 CPU and VideoCore IV GPU. The Raspberry Pi has gained popularity for uses in robotics projects, home automation, and bitcoin mining. Over 2.5 million units have been sold, helping more students learn computer programming skills.
Strings2
This document discusses string manipulation functions in C++, including getting substrings using .substr(), inserting into strings with .insert(), finding substrings with .find(), comparing strings with relational operators, and equivalent functions for C-style strings like strlen() and strcat(). It provides examples of using .substr() to extract substrings by index and length, .insert() to add a substring, and .find() to locate a substring. It also notes that string comparisons consider ASCII values, so uppercase letters appear before lowercase.
Strings1
This document discusses strings in C++. It explains that a string is a class that can be thought of as a new type of variable to store text. Strings store characters in an array and functions like length() can return the size. Strings can be concatenated using + or assigned using =. The getline() function reads a whole line of input including whitespace. Dot functions operate on specific string objects.
Introduction to Computer Science 111 Lab
This document provides information about the CS111 Lab course. It introduces Michael Gordon as the lab instructor and provides his contact information. It states that the lab counts for 30% of the overall course grade, with weekly quizzes and assignments making up that portion. Students will connect to a server called Venus to complete their work, accessing it through SSH Secure Shell Client. It provides instructions on how to set up an SSH profile to connect to the Venus server using the given host name and username.
Strings
This document discusses strings and classes in C++. It explains that classes allow programmers to create new types of variables, similar to how functions allow creating new operations. Strings are an example of a built-in class in C++. The document outlines various functions that can be used to manipulate strings, such as length(), size(), concatenation (+) and getline() to read a whole string including whitespace. It also explains using "dot" functions to call methods on a specific string object.
Arrays, continued
This document discusses arrays in functions and two dimensional arrays. It explains that arrays can be passed to functions by name without specifying the size. Functions receive arrays by reference by default. Two dimensional arrays can be thought of as a grid of rows and columns or as an array of arrays. The document provides an example of declaring and calling a 2D array function. It also includes a visualization of indexes in a 2D array.
Arrays
This document discusses arrays, including that they are used to store multiple elements of the same type in contiguous memory locations without needing separate variables. It explains how to declare and assign values to array elements, noting that the first element is index 0 and the last is size-1. The document provides some advice that arrays must have a variable type, elements should not be assumed initialized to zero, and to use separate loops for each task.
Scope of variables
This document discusses the scope of variables in C++. It explains that a variable's scope refers to where it can be accessed in code. Variables declared within a block, such as a function, can only be used within that block. The document provides examples demonstrating that variables cannot be accessed outside their scope, but their values can be changed by passing them into functions using references which provide access to the original variable.
Functions
This document discusses functions in C++. It explains that functions allow code to be reused without copying, make changes easier, and keep code organized. It provides examples of common functions like sqrt() and rand(). It outlines that a function has a prototype defining its return type, name, and parameters, and a definition containing the code. Prototypes declare a function before main() so it can be called. Return types specify what is returned. Examples demonstrate full function declarations before main().
Shape logic 1
This document discusses nested loop logic and patterns for printing shapes using nested loops. It begins by conceptualizing a grid with rows and columns that can be used to print patterns. Examples are given of simple right triangles printed using nested loops. Formulas are provided for determining the middle of a grid and the number of rows needed based on the number of columns to print isosceles triangles. The document also discusses starting indexes at zero instead of one and algorithms for printing shapes centered with diagonals.
For loops
This document discusses for loops in CS111 Lab. It explains that for loops initialize a variable, check a condition, and increment the variable each iteration. Common uses include counting from 0 to n, counting backwards from n to 0, and incrementing by amounts other than 1. For loops are used when the number of iterations is known, while loops when it depends on user input. Nested for loops run one loop inside another, with the inner loop running fully each time the outer loop iterates.
While loops
This document discusses while loops and how to properly structure them. It explains that a while loop will repeat a set of instructions as long as a condition is true. It advises that the variable checked in the condition must be initialized before the loop and able to change inside the loop. The document also covers incrementing and decrementing as tools for iterating through loops, noting the differences between pre-increment, post-increment, and other shorthand forms.
If statements
This document discusses if statements in CS111 Lab, including the structure of if statements, common checks used in if statements like greater than, less than, equal to, not equal to, and examples of using else, else if, compound comparisons with AND and OR operators, and negation.
Arithmetic
This document provides an overview of arithmetic operators and operations in C++. It discusses the different arithmetic operators, order of operations, integer and decimal division, data types and order, and type casting. It explains that integer division drops the decimal, while operations involving doubles will result in decimal numbers. It also outlines that the order of operations is parentheses first, then multiplication/division/modulus, followed by addition/subtraction. Type casting can be used to change the resulting data type of an operation.
Variables
This document discusses variables in C++. It defines a variable as a means of storing data for a program. Variables come in different types like integers, decimals, characters, and more to store different kinds of information. Common variable types include int, double, char, bool, and string. Variables are declared with their type and name, and assigned values using the equal sign. Variables can also be initialized by declaring and assigning a value simultaneously. The document provides examples and rules for declaring, assigning, and initializing variables in C++.
Output
This document provides an overview of C++ basics, input and output, and comments for a CS111 lab. It explains that every program should include #include <iostream> and using namespace std; and that the main program should begin with int main(){ and end with return 0;}. It also describes how to use cout and cin for output and input, how to output text with quotes and new lines, and how to write single-line and multi-line comments.
Millennial white paper
This document discusses how views of Millennials have changed over time. Early views portrayed them as optimistic team players, but more recent research shows Millennials hold slightly less critical views of businesses than older generations. However, the Great Recession transformed many Millennials from enthusiastic to anti-establishment. Millennials are still the most active users of social media, which has been influential in events like the Arab Spring uprisings.
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Raspberry Pi presentation for Computer Architecture class
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UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
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2. Understanding how this integration enhances test automation within the UiPath platform
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Test Automation with generative AI and Open AI.
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Introduction to Linux, Pico, G++
- 1. CS111 Lab Linux etc. Instructor: Michael Gordon
- 2. Linux We will be using the Linux OS, which may be different from the operating systems you have used before (Windows, Mac OS). There is no GUI or mouse-interface. Commands are typed at the prompt.
- 3. Linux commands Create a directory (folder): mkdir [prompt] mkdir mydir Change [prompt] cd mydir [prompt mydir] Go current directory: cd up one directory: cd .. (note space) [prompt mydir] cd .. [prompt]
- 4. Commands, continued Remove [prompt] rmdir mydir List files/sub-directories: ls (letter ‘l’) [prompt] ls List a directory (folder): rmdir with details: ls -l [prompt mydir] ls –l
- 5. Commands, continued Copy a file: cp [prompt] cp origfile newfile Rename [prompt] mv origfile newfile Remove a file: mv a file: rm [prompt mydir] rm origfile
- 6. Pico Pico is a text editor for Unix. In this lab we will use it to write our C++ code. To open or create a file in pico: [prompt] pico filename.cpp To save: Control+o (letter ‘o’) prompts you to overwrite. ‘Enter’ for ‘Yes’. Or change the file name. To exit pico: Control+x
- 7. In Pico In Pico we will write our C++ code. Note: You must move your cursor with the arrows keys, not the mouse. To ‘cut’ a line of code, use Control+k To ‘paste’ use Control+u
- 8. Compiling Once you’ve written a C++ program, you need to compile it (translate it into machine code) before running it. We use a compiler called g++. [prompt] g++ file.cpp An executable file is automatically created (or overwritten) with the name a.out.
- 9. Executing To run the executable file, type: [prompt] ./a.out To give a name to your .out file: [prompt] g++ -o name.out file.cpp To run: [prompt] ./name.out