Question

How to get the current executable name in Rust

Answer 1

fn main() {
    let s = std::env::current_exe()
        .expect("Can't get the exec path")
        .file_name()
        .expect("Can't get the exec name")
        .to_string_lossy()
        .into_owned();
    
    println!("{}", s);
}



/*
run:

playground

*/

 

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Answer 2

fn get_exec_name() -> Option<String> {
    std::env::current_exe()
        .ok()
        .and_then(|pb| pb.file_name().map(|s| s.to_os_string()))
        .and_then(|s| s.into_string().ok())
}

fn main() -> () {
    let exename = get_exec_name().unwrap();
    
    println!("{}", exename);
}



/*
run:

playground

*/

 

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