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my_print_defaults - display options from option files


my_print_defaults [options] option_group ...



displays the options that are present in option groups of option files. The output indicates what options will be used by programs that read the specified option groups. For example, the mysqlcheck program reads the [mysqlcheck] and [client] option groups. To see what options are present in those groups in the standard option files, invoke my_print_defaults like this:
 shell> my_print_defaults mysqlcheck client

The output consists of options, one per line, in the form that they would be specified on the command line.

my_print_defaults supports the following options.

* --help, -?
Display a help message and exit.
* --config-file=file_name, --defaults-file=file_name, -c file_name
Read only the given option file.
* --debug=debug_options, -# debug_options
Write a debugging log. A typical debug_options string is 'd:t:o,file_name'. The default is 'd:t:o,/tmp/my_print_defaults.trace'.
* --defaults-extra-file=file_name, --extra-file=file_name, -e file_name
Read this option file after the global option file but (on Unix) before the user option file.
* --defaults-group-suffix=suffix, -g suffix
In addition to the groups named on the command line, read groups that have the given suffix.
* --no-defaults, -n
Return an empty string.
* --verbose, -v
Verbose mode. Print more information about what the program does.
* --version, -V
Display version information and exit.

Copyright © 1997, 2010, 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


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