## linux like which 
can compile in windows, linux and macos
usage like linux which command

```bash
  rwhich ls
  rwhich openssl
  rwhich openssl.exe
  rwhich code.exe
```


Usage: which-rs [options] command...

       rwhich ls
       rwhich openssl
       rwhich opewnssl.exe
       rwhich code.exe

Options:

  -h, --help    Display this help message