Capistrano tasks to take a look into the logfiles on the remote server.

capistrano_logfile_watching.rb

namespace :logs do
  desc "show last 100 lines of your remote logfile."
  task :tail do
    run "tail -n100 #{shared_path}/log/#{rails_env}.log"
  end

  desc "watch your logfile and see additional data being appended."
  task :watch do
    stream("tail -f #{shared_path}/log/#{rails_env}.log")
  end
end