git clone https://github.com/HotSec/subdomain
cd subdomain
pip3 install poetry
poetry install
poetry shell

python subdomain -h

usage: subdomain.py [-h] [-v] [-f FILE] -d DOMAIN [-s DEEP]

使用aiodns爆破子域名

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -f FILE, --file FILE  指定字典文件
  -d DOMAIN, --domain DOMAIN
                        目标域名
  -s DEEP, --deep DEEP  域名深度,默认 1