myisamchk — MyISAM Table-Maintenance Utility For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Do not read any option files. If program startup fails due to reading unknown options from an option file, --no-defaults  can be used to prevent them from being read. The exception is that the  .mylogin.cnf  file is read in all cases, if it exists. This permits passwords to be specified in a safer way than on the command line even when  --no-defaults  is used. To create .mylogin.cnf , use the  mysql_config_editor  utility. See Section 4.6.7, “mysql_config_editor — MySQL Configuration Utility” . For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Print the program name and all options that it gets from option files. For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . Silent mode. Write output only when errors occur. You can use  -s  twice ( -ss ) to make  myisamchk  very silent. Verbose mode. Print more information about what the program does. This can be used with  -d  and  -e . Use  -v  multiple times ( -vv ,  -vvv ) for even more output. Display version information and exit. Instead of terminating with an error if the table is locked, wait until the table is unlocked before continuing. If you are running  mysqld  with external locking disabled, the table can be locked only by another  myisamchk  command. You can also set the following variables by using  -- var_name = value  syntax: • --wait ,  -w • --version ,  -V • --verbose ,  -v • --silent ,  -s • --print-defaults • --no-defaults 566 Variable Default Value decode_bits 9 ft_max_word_len version-dependent ft_min_word_len 4 ft_stopword_file built-in list key_buffer_size 523264 myisam_block_size 1024 myisam_sort_key_blocks 16