myisamlog

myisamlog processes the contents of a MyISAM log file.

Invoke myisamlog like this:

shell> myisamlog [options] [log_file [tbl_name] ...]
shell> isamlog [options] [log_file [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 for myisamlog and isam.log for isamlog 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.