Question

I wrote a small Hello World app.

#include <stdio.h>
int main(int argc, const char * argv[])
{
   printf("Hello World\n");


}

When I run

gcc fileName.c 

nothing is returned to the terminal. Can someone tell me what I’m doing wrong?

Answer 1

gcc is the compiler. it outputs a file called a.out unless specified otherwise using the -o flag, for example gcc -o myprogram fileName.c which will create an executable called myprogram from the source myFile.c.

To run your program write: ./a.out in the terminal