mysqlcheck — A Table Maintenance Program • --debug-info • --default-character-set= charset_name • --defaults-extra-file= file_name • --defaults-file= file_name • --defaults-group-suffix= str • --extended ,  -e • --default-auth= plugin • --enable-cleartext-plugin • --fast ,  -F 467 Enable the  mysql_clear_password  cleartext authentication plugin. (See Section 6.4.1.4, “Client-Side Cleartext Pluggable Authentication” .) A hint about which client-side authentication plugin to use. See Section 6.2.17, “Pluggable Authentication” . If you are using this option to repair tables, it runs an extended repair that may not only take a long time to execute, but may produce a lot of garbage rows also! If you are using this option to check tables, it ensures that they are 100% consistent but takes a long time. For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Read not only the usual option groups, but also groups with the usual names and a suffix of  str . For example,  mysqlcheck  normally reads the  [client]  and  [mysqlcheck]  groups. If this option is given as  --defaults-group-suffix=_other ,  mysqlcheck  also reads the  [client_other]  and [mysqlcheck_other]  groups. For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Exception: Even with  --defaults-file , client programs read  .mylogin.cnf . Use only the given option file. If the file does not exist or is otherwise inaccessible, an error occurs. If file_name  is not an absolute path name, it is interpreted relative to the current directory. For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Read this option file after the global option file but (on Unix) before the user option file. If the file does not exist or is otherwise inaccessible, an error occurs. If  file_name  is not an absolute path name, it is interpreted relative to the current directory. Use  charset_name  as the default character set. See Section 10.15, “Character Set Configuration” . Print debugging information and memory and CPU usage statistics when the program exits. This option is available only if MySQL was built using  WITH_DEBUG . MySQL release binaries provided by Oracle are  not  built using this option.