unless you have a C interpreter to speak of, the term 'C script' is a misnomer. a C source file is commonly referred to as a 'module'.

since C modules are generally compiled, it would be a good idea to include a fully compilable C file and instructions on how to compile it. your file is incomplete and lacks both a main method and an 'include' directive to tell the compiler where printf() is defined (in the system header file stdio.h).

only those who have never used C before will be unfamiliar with your example. it is imperative (lol) that these people learn the concepts mentioned above if they wish to do anything useful or productive with it.