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Verification Guide: Running a C Compiler on Linux

While building the Linux kernel, the developers had to create a free open source compiler to create the kernel and modules. The GCC compiler was created as part of the GNU Project. In the current version of all Linux distributions, the GCC compiler is pre-installed in the operating system. You can use the GCC compiler to compile C, C ++, Ada, Go, and other object-oriented programming languages. You can compile code in your terminal shell using the GCC compiler on a Linux system.

We ran the steps and commands mentioned in this article on an Ubuntu 20.04 LTS system, but it works exactly the same on other versions like Ubuntu 18.04 or distributions like Debian 10.

We are going to use the Linux terminal command line tool to compile a simple C program. To open Terminal, you can use Ubuntu Dash or the keyboard shortcut Ctrl + Alt + T.

Install essential build packages

To compile and run a C program, you must have the essential packages installed on your system. Enter the following command as root on your Linux terminal:

$ sudo apt-get install build-essential

You will be asked to enter the root password; the installation process will start after that. Make sure you are connected to the Internet.

Write a simple program in C

After installing the essential packages, let’s write a simple C program. Open the Ubuntu graphical text editor and type or copy the following sample program into it:

#understand

int main () {printf (“nAn example C program nn”); returns 0;}

Then save the file with the extension .c.

Alternatively, you can write the C program through Terminal in gedit as follows:

$ gedit sampleProgram.c This will create a .c file in which you can write and save a program.

Compile the C program with the gcc compiler

In your Terminal, enter the following command to create an executable version of the program you wrote: Syntax: $ gcc [program Name].c -o Program name

Make sure your program is in your Startup folder. Otherwise, you will need to specify the appropriate paths in this command.

Run the program

The last step is to run the compiled C program. Use the following syntax to do this:

$ ./ program name

You can see how the program runs in the example above, showing the text we wrote to print it.

Final words: Guide: Running a C compiler on Linux

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