fabian@Fabian-PC:~$ ruby test-daemon-control.rb run
test-daemon.rb: process with pid 1578 started.
/home/fabian/test-daemon.rb:6:in `initialize': Permission denied - test.txt (Errno::EACCES)
    from /home/fabian/test-daemon.rb:6:in `open'
    from /home/fabian/test-daemon.rb:6
    from /home/fabian/test-daemon.rb:5:in `loop'
    from /home/fabian/test-daemon.rb:5
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/application.rb:203:in `load'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/application.rb:203:in `start_load'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/application.rb:298:in `start'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/controller.rb:73:in `run'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons.rb:147:in `run'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/cmdline.rb:109:in `call'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons/cmdline.rb:109:in `catch_exceptions'
    from /var/lib/gems/1.8/gems/daemons-1.1.9/lib/daemons.rb:146:in `run'
    from test-daemon-control.rb:4
fabian@Fabian-PC:~$