A very quick command line tip today, for users of pretty much any Unix-based operating system, including Linux distributions.
When you're looking up information on a certain web site or domain name, you might be used to using whois functions on websites such as DNS Tools to see who owns a domain.
However, in most cases there is a much quicker way to get the same information, which is through your command line.
As you might guess, it's simply:
$ whois domain.com
If you also want to hide the legal information that gets returned on a whois request, for brevity, you can easily do so with:
$ whois -H domain.com
This often won't catch it all and give you purely the results, but it usually helps reduce the level of output.