Find avamar session logs for specific job via commandline

Issue : Checking the session logs via GUI  for a long running backup jobs  gives 

 Size limit exceeded, unable to transmit file. Combined logs exceed size limit of 1048576 bytes. It may be possible to include all logs in exported logs or a support bundle. <<==

So the question is how do I view the specific runnings jobs session logs  via commandline (avtar )?  Also where is avtar pulling these logs from ? I mean is the session logs saved in local avamar Utility node or on the client side ? If so what is the path to the log files.