this post was submitted on 31 Oct 2023
268 points (89.9% liked)

Programmer Humor

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thisIsGoingToBeASeriousDebate (programming.dev)
submitted 10 months ago by TadoTheRustacean@programming.dev to c/programmer_humor@programming.dev
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[–] 30p87@feddit.de 39 points 10 months ago (6 children)

Personally,

echo Hello World!
[–] pranaless@beehaw.org 31 points 10 months ago (1 children) 
use std::process::Command;

fn main() {
    Command::new("sh")
        .arg("-c")
        .arg("echo Hello World!")
        .spawn()
        .unwrap();
}

Like this?

[–] 30p87@feddit.de 10 points 10 months ago (2 children)

No, more like

use std::process::Command; fn main() { Command::new("sh").arg("-c").arg("echo Hello World!").spawn().unwrap(); }

.
Just a little bit shorter, as it seems /s

[–] funkajunk@lemm.ee 8 points 10 months ago (1 children)

I just fucking threw up

[–] 30p87@feddit.de 6 points 10 months ago

I did too. Multiple times in fact, I had to look at the other Rust code!

[–] TadoTheRustacean@programming.dev 2 points 10 months ago (1 children)

Isn't echo a shell builtin?

[–] pranaless@beehaw.org 1 points 10 months ago

Yes and no. While coreutils does provide an echo binary, shells also have a built-in for optimisation purposes.

At first I had the code calling the binary directly, but then changed it to spawning a shell (and so using the builtin). It's very cursed either way.

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