Well if you want to start a new C project just create the source file, open it with an editor and start coding.
I am just learning C myself, what I have done is make a directory called programming
in a terminal window I'll cd to that dir. and create the file like so touch filename.c
just make sure you use the .c extension then open the file with what ever editor you use.
You don't have to create the file in the manner I do, from within the directory you can create it when you open your editor lets say you use emacs (nice editor by the way) from within the directory type emacs -rv filename.c
and when emacs starts it will create the file upon saving it. Oh the -rv stands for reverse video emacs will open with a black background so it's a little easier on the eyes.
You can create the file with just about any editor the same way.
Note: emacs has a setting in options that you can highlight your code with colors, nano can be edited to do the same but takes a little work, also if you install the full vi editors add-ons it will have colored code.
Any help would be greatly appreciated, or if there is an easier way to compile the fwcutter.c program please let me know.
From within the dir. that you downloaded fwcutter.c to compile it with the gcc compiler type
gcc -o fwcutter fwcutter.c
This will compile the source and create an executable called fwcutter. Unless you have errors in which case you will need to edit your source to fix them.
To learn what the gcc options are type gcc --help
Edit: I should add, to run the executable file prefix the file with ./
so it would be ./filename
so in your case you would execute the file like so, ./fwcutter