Usage: subDomainsBrute.py [options] target.comOptions:  --version             show program's version number and exit  -h, --help            show this help message and exit  -f FILE               File contains new line delimited subs, default is                        subnames.txt.  --full                Full scan, NAMES FILE subnames_full.txt will be used                        to brute  -i, --ignore-intranet                        Ignore domains pointed to private IPs  -t THREADS, --threads=THREADS                        Num of scan threads, 200 by default  -p PROCESS, --process=PROCESS                        Num of scan Process, 6 by default  -o OUTPUT, --output=OUTPUT                        Output file name. default is {target}.txt

https://github.com/lijiejie/subDomainsBrute