/usr/bin 客户端程序和脚本
[root@~ bin]# ls mysql*
mysql mysqldump mysql_secure_installation
mysqladmin mysqldumpslow mysqlshow
mysqlbinlog mysqlimport mysqlslap
mysqlcheck mysql_install_db mysql_ssl_rsa_setup
mysql_config_editor mysql_plugin mysql_tzinfo_to_sql
mysqld_pre_systemd mysqlpump mysql_upgrade
/usr/sbin mysql服务器
[root@chouchou sbin]# ls mysql*
mysqld mysqld-debug
/var/lib/mysql 日志文件，数据库
mysql:
columns_priv.frm help_relation.ibd slave_master_info.frm
columns_priv.MYD help_topic.frm slave_master_info.ibd
columns_priv.MYI help_topic.ibd slave_relay_log_info.frm
db.frm innodb_index_stats.frm slave_relay_log_info.ibd
db.MYD innodb_index_stats.ibd slave_worker_info.frm
db.MYI innodb_table_stats.frm slave_worker_info.ibd
db.opt innodb_table_stats.ibd slow_log.CSM
engine_cost.frm ndb_binlog_index.frm slow_log.CSV
engine_cost.ibd ndb_binlog_index.MYD slow_log.frm
event.frm ndb_binlog_index.MYI tables_priv.frm
/usr/share/mysql 错误消息和字符集文件
[root@chouchou mysql]# ls mysql*
mysql-log-rotate mysql_system_tables_data.sql
mysql_security_commands.sql mysql_system_tables.sql
mysql_sys_schema.sql mysql_test_data_timezone.sql