rq 
NOTE: rq no longer ships with query support and a Javascript
engine is not included; instead, it focuses exclusively on format
transformation. You can still pipe into a runtime like node.js if
you need Javascript evaluation. Please see this issue
to discuss introducing a new query language.
This is the home of the tool called rq (record query). It's a tool
that's used for performing queries on streams of records in various
formats.
The goal is to make ad-hoc exploration of data sets easy without
having to use more heavy-weight tools like SQL/MapReduce/custom
programs. rq fills a similar niche as tools like awk or sed,
but works with structured (record) data instead of text.
It was created with love out of the best parts of Rust, and is
distributed as a dependency-free binary on many operating systems and
architectures.
Quick links
- Installation — How to install
rq. - Tutorial — Learn
rqfrom scratch. - Protobuf — Configure Protobuf specifics.
- Development — Contribute to
rq.