Provided by: erlang-manpages_20.2.2+dfsg-1ubuntu2_all 
NAME
observer - A GUI tool for observing an Erlang system.
DESCRIPTION
Observer is a graphical tool for observing the characteristics of Erlang systems. The tool Observer
displays system information, application supervisor trees, process information, ETS tables, Mnesia
tables, and contains a front end for Erlang tracing with module ttb.
For details about how to get started, see the User's Guide.
EXPORTS
start() -> ok
Starts the Observer GUI. To stop the tool, close the window.