GNU C Compiler not working
Hey guys. So I downloaded Linux just for the heck of it and decided I would try to learn some C in my spare time. So I found a tutorial, and the first code they told me to do was this:
Code:

#include <stdio.h>

int main()
{
printf( "I am alive! Beware.\n" );
getchar();
return 0;
}

So I copied it into gedit and saved it as "hello.c". Then I followed the instructions and opened up the Terminal and typed this:
Code:

gcc hello.c

And this happens
Code:

sam@sam-desktop:~$ gcc hello.c
sam@sam-desktop:~$

But when I go back to the file and screw it up by randomly erasing characters, it tells me what I did wrong.

I have no idea why this won’t work. I also am pretty bad at some of this complexer stuff (to me it’s complex) and anywhere I look online elsewhere people talk as if everybody knows how to do these things.

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along with a bunch of other stuff. when i entered it into my profile it worked, my background became black. however, i’d like to use a background image from a url instead of just the black background? is that possible? also, is some part of this code unnecessary such as the "br"s? what do all the parts mean and how can i change them. thanks