The Mac and most distributions of Linux come with netcat built in. The Mac distribution is known as nc. You can run a super-quick port scan of another host without installing any third party tools. I’ve been using stroke to run my port scans for a long time. I am a fool. Netcat’s better. Don’t be like me. Use nc:
/usr/bin/nc -z 10.10.10.10 1-100000