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[](https://github.com/harryfei/which-rs/actions/workflows/rust.yml)
# 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"));
```
2. 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](https://docs.rs/which/).
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