svnadmin list-dblogs — Ask Berkeley DB which log files exist for a given Subversion repository (applies only to repositories using the bdb backend).
Berkeley DB creates logs of all changes to the repository, which allow it to recover in the face of catastrophe. Unless you enable DB_LOGS_AUTOREMOVE, the log files accumulate, although most are no longer used and can be deleted to reclaim disk space. See the section called “Managing Disk Space” for more information.