what is the command

I need to override the OOTB logger service in which i have to add my regex configuration where author can configure log file name. pattern matching for logging and other OOTB configuration. How can i override the default one so that my service should get picked.

I want to mask user data so i need to create a service config where i can create more than one regex and the service should match the regex and mask the data in log file.How we can achieve in AEM ?

Hi All, I have cleared the Adobe AEM 5.6 component developer exam and now i want to go with Advance developer exam so can you please guide me the study material and the topics for my preparation ?