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README.md

which

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

Support platforms

Linux
Windows
macOS

Examples

To find which rustc executable binary is using.

use which::which;

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

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

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.