Log menyimpan data, waktu dan deskripsi untuk setiap perintah yang sudah dijalankan OnyX. You can go to File menu > Open Log Window to view the Log file. From within the Log window, you can reveal the Log file in the Finder or delete the Log.
By default, the OnyX Log is deleted when quitting the application, but you can choose to retain it by deselecting the option default in the Advanced pane of OnyX preferences.