whois
whois
whoisis a command-line utility that retrieves registration about IPs, domain names, and network devices registered with ICANN- Utility exists for Linux, Windows, and macOS
- Native on macOS, must be installed on Windows, and depends on the Linux distribution
- Use is straightforward, though there may be some variations between OS versions
whois [options] [object][options]include choosing the specific registrant server to query, hiding disclaimers, showing only abuse contacts, etc.[object]the IP address or domain name being queried.
- When paired with grep, it can make retrieving certain information very efficient.

The start of the response from a whois command

Metadata
Sources
Whois - Sysinternals | Microsoft Learn
How to install whois on Ubuntu / Debian Linux - nixCraft
How to use the whois command on Ubuntu Linux | GeeksforGeeks