Finding the right session file with Session ID in log.

Hello,

I have a dir with a lot of files like this:
ruby_sess.3728d5b872e30b3a
ruby_sess.22e35ac603d7d68f
ruby_sess.4e35d54a477ee9e9

And I am currently working to recover some data we've lost using the
Production.log from Rails. How can I, with the Session ID from the
log, find the right session file? Each entry in the log looks like
this:

Processing ChamadosController#auto_complete_for_chamado_contato (for
200.247.177.40 at 2008-07-18 09:11:23) [POST]
  Session ID: 4555232f6925596f600fe9d32b0273c5
  Parameters: {"action"=>"auto_complete_for_chamado_contato", (a bunch
of parameters)}
Completed in 0.07708 (12 reqs/sec) | Rendering: 0.00056 (0%) | DB:
0.07584 (98%) | 200 OK [https://itask.bludata.com.br/chamados/
auto_complete_for_chamado_contato]

Also, this log was generated in Rails 1.2.

Thanks guys.