Logfile
From AMule Project FAQ
(There is currently no text in this page) The logfile is where aMule records important information about its status and actions. The logfile is displayed in the lower window on the Network page of aMule, where it is updated continually.
The logfile is stored with aMule's other settings in the ./aMule directory. It is a text file which you can view outside of aMule with "more", "less", or any other text file viewer.
When aMule starts, it creates a new log. The previous log is stored as "logfile.bak".