How to Run C program in Ubuntu

To compile and run a C program in Ubuntu, you need the GCC compiler, which is included in the build-essential package. After installing it, you can create, compile, and execute C programs directly from the terminal.

Step 1: Install GCC compiler on Ubuntu

• First, update your system and install the build-essential package:

sudo apt update

sudo apt install build-essential

Verify that GCC is installed:

gcc --version

Step 2: Create a C Program File

Use the touch command to create a new C source file:

touch hello.c

Step 3: Write a C Program

Open the file using a text editor such as Nano:

nano hello.c

Write a basic C program:

Hello world

Step 4: Compile the C Program

Compile the program using GCC:

gcc hello.c

This command generates an executable file named a.out by default.

To specify an output file name:

gcc hello.c -o hello

Step 5: Run the hello executable file

• Run the compiled program using:

./hello

Now, we can see the actual output of Hello World in our terminal of the hello.c system file.

Also Read

• How to Compile and Run C/C++/Java Programs in Linux
• How to write a running C code without main()?
• Getting System and Process Information Using C Programming and Shell in Linux