If you're anxious to get Mr. Roby's little sample to compile and run, let me give you a little nudge.
Getting a C program to run involves three steps:
1. Create your C source file. If you've never used vi or emacs then I would recommend pico. Save the source file as 'lesson1.c'.
2. Compile it into machine code:
3. Run your program and see your happy result:
I'm not going to go into how or why any of this works; I will let the excellent tutorial run its course. I will, however, say that despite what you've read, the line that begins with '#' (it's not a comment) must remain as an independent line.
Here is the entire program:
//Computes our favorite number
int favoriteNumber = (3 * 4) / 2; /*is anyone's favorite number not an int? */
favoriteNumber = favoriteNumber + 2;
/* now let's tell the world
what our favorite number is! */
printf("My favorite number is %d!", favoriteNumber);