A、Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files

B、Execute the PURGE BINARY LOGE NOT USED command

C、Remove all of the binary log files that have a modification date earlier than today

D、Edit the .index file to remove the files you want to delete

E、Ensure that none of the attached slaves are using any of the binary logs you want to delete