Facebook open-sourced osquery:

Osquery exposes an operating system as a high-performance relational database. This design allows you to write SQL-based queries efficiently and easily to explore operating systems. With osquery, SQL tables represent the current state of operating system attributes, such as:

• running processes
• loaded kernel modules
• open network connections

SQL tables are implemented via an easily extendable API. Several tables already exist and more are being written. To best understand the expressiveness that is afforded to you by osquery, consider the following examples.

Other than the deliberately lower-cased name, impressive.