Crash is Crate's shell for interacting with clusters.
The Crash shell can be used from within a node that is part of a cluster or on another machine to connect to a remote cluster.
To launch Crash:
Your command prompt will then switch to a
cr> prompt. Connect to a cluster using the URL and the Crate port (4200):
cr> \connect 127.0.0.1:4200;
You can then use Crash to issue SQL queries and other commands.