```bash
rew [options] [--] [pattern] [values]...
````
When no values are provided, they are read from standard input instead.
```bash
When no pattern is provided, values are directly copied to standard output.
```bash
Use `-b, --diff` flag when piping output to `mvb`/`cpb` utilities to perform bulk move/copy.
```bash
Use `-h` flag to print short help, `--help` to print detailed help.