which

A Rust equivalent of Unix command "which". Locate installed executable in cross platforms.

Support platforms

• Linux
• Windows
• macOS

Examples

1) To find which rustc executable binary is using.

``` rust
use which::which;

let result = which("rustc").unwrap();
assert_eq!(result, PathBuf::from("/usr/bin/rustc"));
```

1. After enabling the regex feature, find all cargo subcommand executables on the path:

   ``` rust use which::which_re;

   which_re(Regex::new("^cargo-.*").unwrap()).unwrap() .for_each(|pth| println!("{}", pth.to_string_lossy())); ```

Documentation

The documentation is available online.