$ bin/mysqladmin --help | grep flush

flush-all-statistics Flush all statistics tables

flush-all-status Flush status and statistics

flush-client-statistics Flush client statistics

flush-hosts Flush all cached hosts

flush-index-statistics Flush index statistics

flush-logs Flush all logs

flush-privileges Reload grant tables (same as reload)

flush-binary-log Flush binary log

flush-engine-log Flush engine log(s)

flush-error-log Flush error log

flush-general-log Flush general log

flush-relay-log Flush relay log

flush-slow-log Flush slow query log

flush-status Clear status variables

flush-table-statistics Clear table statistics

flush-tables Flush all tables

flush-threads Flush the thread cache

flush-user-statistics Flush user statistics

flush-user-resources Flush user resources