Can you create a simple Hello World program i the programming language C with instructions on how to compile and run the program?
Here is the simple Hello World program in C:
```#include <stdio.h>

int main()
{
    printf(Hello World!\n);
    return 0;
}```
To compile and run the program, follow these steps:
1. Save the above code to a file with a .c extension, for example hello_world.c.
2. Open a terminal or command prompt and navigate to the directory where the file is saved.
3. Compile the program by running the following command:
```gcc -o hello_world hello_world.c```
4. Run the compiled program by typing the following command:
```./hello_world```
5. You should see the output Hello World! displayed in the terminal.

Note: The above instructions are for a Unix-based system. If you are using Windows, you may need to use a different compiler or set up a development environment.
My shell prompts `gcc: command not found`. What should I do?
The error message gcc: command not found indicates that the GCC compiler is not installed on your system. To resolve this issue, you need to install GCC. The method of installation depends on the operating system you are using.

For a Debian or Ubuntu-based system, you can install GCC by running the following command:
sudo apt-get install build-essential

For a Fedora-based system, you can install GCC by running the following command:
sudo dnf install gcc

For a CentOS-based system, you can install GCC by running the following command:
sudo yum install gcc

For a Windows system, you can download and install MinGW or MinGW-w64, which provides a GCC compiler for Windows.

After installing GCC, try running the commands again to compile and run the Hello World program.
Your instructions read so simply. But what are the common pitfalls of this process. Can I expect it to work so smoothly, and what should I do if I run into problems?