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MYISAMLOG(1)                 MySQL Database System                MYISAMLOG(1)

       myisamlog - display MyISAM log file contents

       myisamlog [options] [log_file [tbl_name] ...]

       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:

           shell> 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.

       ?   -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.

       Copyright (C) 1997, 2016, Oracle and/or its affiliates. All rights reserved.

       This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU
       General Public License as published by the Free Software Foundation; version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
       for more details.

       You should have received a copy of the GNU General Public License along with the program; if not, write to the
       Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see

       For more information, please refer to the MySQL Reference Manual, which may already be installed locally and
       which is also available online at

       Oracle Corporation (

MySQL 5.6                         07/08/2016                      MYISAMLOG(1)