4.6.4 myisamlog — Display MyISAM Log File Contents — MySQL 5.7

4.6.4 myisamlog — Display MyISAM Log File Contents

myisamlog processes the contents of a MyISAM log file. To create such a file, start the server with a --log-isam=log_file option.

Invoke myisamlog like this:

myisamlog [options] [file_name [tbl_name] ...]

The default operation is update (-u). If a recovery is done (-r), all writes and possibly updates and deletes are done and errors are only counted. The default log file name is myisam.log if no log_file argument is given. If tables are named on the command line, only those tables are updated.

myisamlog supports the following options:

-?, -I

Display a help message and exit.
-c N

Execute only N commands.
-f N

Specify the maximum number of open files.
-F filepath/

Specify the file path with a trailing slash.
-i

Display extra information before exiting.
-o offset

Specify the starting offset.
-p N

Remove N components from path.
-r

Perform a recovery operation.
-R record_pos_file record_pos

Specify record position file and record position.
-u

Perform an update operation.
-v

Verbose mode. Print more output about what the program does. This option can be given multiple times to produce more and more output.
-w write_file

Specify the write file.
-V

Display version information.