FAQ: Hello World - Compiling

This community-built FAQ covers the “Compiling” exercise from the lesson “Hello World”.

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This lesson is a little consusing at first.

The solution to the first Instruction would be “gcc script.c -o script”. After that, I am a little confused to what is to be done exactly. Any help?

They asked you to differentiate the name of the c file (script.c) and the executable you compiled, like: gcc script.c -o helloworld, by doing that you are compiling the script.c file into a language understandable by the computer.
They choose to name this executable “helloWorld”
Since, you have done an “executable”, then you read this executable by ./"name of my executable"

2 Likes

Why do you get the correct output even after changing the code? say I had the code from this lesson
#include <stdio.h>
int main() {
// output a line
printf(“Hello World!\n”);
}

gcc script.c -o helloWorld
./helloWorld

prints Hello World!

then I changed the code to
#include <stdio.h>

int main() {
// output a line
prin
something that should give an error and then did
gcc script.c -o helloWorld
./helloWorld

why does it still print Hello World!

I am so confused as to what to write onto the bash compiler. Could anybody help? Thanks

Have you look at the comment above FAQ: Hello World - Compiling - #3 by _elmn ?

What have you tried entering in the bash terminal? That may offer a clue as to the nature of your mistake.

I’ve tried that and what it tells me to type in won’t work either.

What are you typing? Can you kindly copy paste here exactly what you are typing?

this is exactly what I am typing into the bash terminal. I would really appreciate the help
gcc helloWorld.c -o helloWorld

PLEASE DISREGARD!! Was able to figure it out. Thank you!