> u8pls help

Usage: u8pls [OPTIONS] <DIR> <COMMAND>

Commands:
  suffix  match file suffix like: ".txt"
  prefix  match file prefix eg: "data_" will match: data_1.docx,data_2.bin
  regexp  advance match pattern eg: `202\d_[a-z]{3}\.txt` match `2023_abc.txt`
  help    Print this message or the help of the given subcommand(s)

Arguments:
  <DIR>  target dir

Options:
  -r                        recursive on sub dir
  -d <MAX_DEPTH>            max sub dir depth
  -j <MAX_CONCURRENCY>      max concurrency, increase if you change system `max_open_file` property [default: 32]
  -h, --help                Print help
  -V, --version             Print version