C Compiler Validation In this activity, you will program your first "Hello World" C program. Execution Execute this project according to the following guidelines: Validate the C compiler is installed: Start the Ubuntu virtual machine. Open up the Terminal Type gcc in the terminal prompt. You might see an error message indicating that 'gcc' is currently not installed. If 'gcc' is not installed, then run the following commands from the terminal prompt: sudo apt-get update sudo apt-get install gcc Type gcc again in the terminal prompt. You should see that gcc ran, but is looking for input files to compile. This is OK. Create your first C program: Open up the Text Editor application. Type in the following C program: (image at the bottom) Save the file as c into your Applications folder created on your desktop. Compile your program: Open the Terminal application. Enter the following command: gcc HelloWorld.c -oHelloWorld.out Run a list command (enter ls) from the terminal prompt. You should now see the compiled binary output called HelloWorld.out. Enter the following in the terminal prompt: ./HelloWorld.out This should print the "Hello World" message to the terminal/console window. Edit the HelloWorld.c file by changing the printf string to "Hello World.\n I now know how to compile and run a C program!", recompile the program, and run the program. What do you see different?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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C Compiler Validation

In this activity, you will program your first "Hello World" C program.

Execution

Execute this project according to the following guidelines:

Validate the C compiler is installed:
1. Start the Ubuntu virtual machine.
2. Open up the Terminal
3. Type gcc in the terminal prompt. You might see an error message indicating that 'gcc' is currently not installed.
4. If 'gcc' is not installed, then run the following commands from the terminal prompt:

sudo apt-get update

sudo apt-get install gcc

Type gcc again in the terminal prompt. You should see that gcc ran, but is looking for input files to compile. This is OK.

Create your first C program:
1. Open up the Text Editor application.
2. Type in the following C program:

(image at the bottom)

Save the file as c into your Applications folder created on your desktop.
Compile your program:
1. Open the Terminal application.
2. Enter the following command:

gcc HelloWorld.c -oHelloWorld.out

Run a list command (enter ls) from the terminal prompt. You should now see the compiled binary output called HelloWorld.out.
Enter the following in the terminal prompt:

./HelloWorld.out

This should print the "Hello World" message to the terminal/console window.
Edit the HelloWorld.c file by changing the printf string to "Hello World.\n I now know how to compile and run a C program!", recompile the program, and run the program. What do you see different?

/* Hello World program */
#include<stdio.h>
main ()
{
}
printf("Hello World\n");

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