C stands as one of the world’s oldest programming languages across various computer systems. Programs written in C can transfer from one platform to another without requiring a complete rewrite. C isn’t limited to a specific operating system or software framework; it thrives on major platforms such as Windows, macOS, Linux, and even Android.
Creating and Running a C Program in Ubuntu Linux
Installing the C Compiler GCC on Ubuntu
To compile a basic C program, the Linux command-line tool, the terminal, proves indispensable. Open the terminal using the Ubuntu Dash or the Ctrl+Alt+T key combination.
Ensure the essential packages are installed for compiling and executing C programs. Input the following command as root in your Linux Terminal:
sudo apt install build-essential
Provide the root password when prompted, and the installation will commence. Make sure your system is connected to the internet during this process.
Writing a Simple C Program
After installing the essential packages, create a simple C program using Ubuntu’s graphical Text Editor (or any text editor like gedit). Write or copy the following sample program into the editor:
#include<stdio.h>
int main()
{
printf("\nCONNECTwww.com\n\n");
return 0;
}
Save the file with a .c extension. For instance, name the C program helloWorld.c in this example. And save in the Home directory.
Compiling the C Program with GCC Compiler
In the terminal, enter the following command to generate an executable version of the program:
gcc helloWorld.c -o helloWorld
Ensure your program is located in your Home folder, or specify the appropriate paths if it’s located elsewhere.
Running the C Program
The final step involves running the compiled C program. Utilize the following syntax:
./helloWorld
