[erlang-questions] erlang restart application

[t x]

Hi,


[apologies for this stream of stupid questions; I haven't figured out
how the various pieces work together yet]


  I'm reading http://ninenines.eu/docs/en/cowboy/HEAD/guide/getting_started/


  In particular, I'm looking at https://gist.github.com/txrev319/9426556


  How does the

    {registered, [hello_erlang_sup]},
    {mod, {hello_erlang_app, []}},

  lines work?


  In particular, how can I restart the hello_erlang_app app ?

  So after I do "_rel/..../ remote_console", I do:

  * c(hello_erlang_app).
  * l(hello_erlang_app).

  --> now, at this point, how do I _restart_ the existing hello_erlang_app ?


Thanks!