mysqladmin

SYNOPSIS
mysqladmin [options] command [command-options] [command
[command-options]]
...

DESCRIPTION
mysqladmin is a client for performing administrative operations. You
can use it to check the server's configuration and current status, to
create and drop databases, and more.

Invoke mysqladmin like this:

shell> mysqladmin [options] command [command-arg] [command [command-arg]] ...

mysqladmin supports the commands described in the following list. Some
of the commands take an argument following the command name.

o create db_name

Create a new database named db_name.

o debug

Tell the server to write debug information to the error log.

o drop db_name

Delete the database named db_name and all its tables.

o extended-status

Display the server status variables and their values.

o flush-hosts

Flush all information in the host cache.

o flush-logs

Flush all logs.

o flush-privileges

Reload the grant tables (same as reload).

o flush-status

Clear status variables.

o flush-tables

Flush all tables.

old (pre-4.1) password-hashing format. (See Section 5.5.6.3,
"Password Hashing in MySQL".)

o password new-password

Set a new password. This changes the password to new-password for
the account that you use with mysqladmin for connecting to the
server. Thus, the next time you invoke mysqladmin (or any other
client program) using the same account, you will need to specify the
new password.

If the new-password value contains spaces or other characters that
are special to your command interpreter, you need to enclose it
within quotes. On Windows, be sure to use double quotes rather than
single quotes; single quotes are not stripped from the password, but
rather are interpreted as part of the password. For example:

shell> mysqladmin password "my new password"

Caution
Do not use this command used if the server was started with the
--skip-grant-tables option. No password change will be applied. This is
true even if you precede the password command with flush-privileges on
the same command line to re-enable the grant tables because the flush
operation occurs after you connect. However, you can use mysqladmin
flush-privileges to re-enable the grant table and then use a separate
mysqladmin password command to change the password.

o ping

Check whether the server is alive. The return status from mysqladmin
is 0 if the server is running, 1 if it is not. This is 0 even in
case of an error such as Access denied, because this means that the
server is running but refused the connection, which is different
from the server not running.

o processlist

Show a list of active server threads. This is like the output of the
SHOW PROCESSLIST statement. If the --verbose option is given, the
output is like that of SHOW FULL PROCESSLIST. (See
Section 12.5.5.27, "SHOW PROCESSLIST Syntax".)

o reload

Reload the grant tables.

o refresh

Flush all tables and close and open log files.

o shutdown

Stop the server.

o variables

Display the server system variables and their values.

o version

Display version information from the server.

All commands can be shortened to any unique prefix. For example:

The mysqladmin status command result displays the following values:

o Uptime

The number of seconds the MySQL server has been running.

o Threads

The number of active threads (clients).

o Questions

The number of questions (queries) from clients since the server was
started.

o Slow queries

The number of queries that have taken more than long_query_time
seconds. See Section 5.2.4, "The Slow Query Log".

o Opens

The number of tables the server has opened.

o Flush tables

The number of flush-*, refresh, and reload commands the server has
executed.

o Open tables

The number of tables that currently are open.

If you execute mysqladmin shutdown when connecting to a local server
using a Unix socket file, mysqladmin waits until the server's process
ID file has been removed, to ensure that the server has stopped
properly.

mysqladmin supports the options in the following list. It also reads
option files and supports the options for processing them described at
Section 4.2.3.2.1, "Command-Line Options that Affect Option-File
Handling".

o --help, -?

Display a help message and exit.

o --character-sets-dir=path

The directory where character sets are installed. See Section 9.2,
"The Character Set Used for Data and Sorting".

o --compress, -C

Compress all information sent between the client and the server if
both support compression.

o --count=N, -c N

The number of iterations to make for repeated command execution if
the --sleep option is given.

o --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/mysqladmin.trace'.

o --default-character-set=charset_name

Use charset_name as the default character set. See Section 9.2, "The
Character Set Used for Data and Sorting".

o --force, -f

Do not ask for confirmation for the drop db_name command. With
multiple commands, continue even if an error occurs.

o --host=host_name, -h host_name

Connect to the MySQL server on the given host.

o --password[=password], -p[password]

The password to use when connecting to the server. If you use the
short option form (-p), you cannot have a space between the option
and the password. If you omit the password value following the

o --port=port_num, -P port_num

The TCP/IP port number to use for the connection.

o --protocol={TCP|SOCKET|PIPE|MEMORY}

The connection protocol to use for connecting to the server. It is
useful when the other connection parameters normally would cause a
protocol to be used other than the one you want. For details on the
allowable values, see Section 4.2.2, "Connecting to the MySQL
Server".

o --relative, -r

Show the difference between the current and previous values when
used with the --sleep option. Currently, this option works only with
the extended-status command.

o --silent, -s

Exit silently if a connection to the server cannot be established.

o --sleep=delay, -i delay

Execute commands repeatedly, sleeping for delay seconds in between.
The --count option determines the number of iterations. If --count
is not given, mysqladmin executes commands indefinitely until
interrupted.

o --socket=path, -S path

For connections to localhost, the Unix socket file to use, or, on
Windows, the name of the named pipe to use.

o --ssl*

Options that begin with --ssl specify whether to connect to the
server via SSL and indicate where to find SSL keys and certificates.
See Section 5.5.7.3, "SSL Command Options".

o --user=user_name, -u user_name

The MySQL user name to use when connecting to the server.

o --verbose, -v

Verbose mode. Print more information about what the program does.

o --version, -V

Display version information and exit.

o --vertical, -E
--set-variable format is deprecated. syntax:

o connect_timeout

The maximum number of seconds before connection timeout. The default
value is 43200 (12 hours).

o shutdown_timeout

The maximum number of seconds to wait for server shutdown. The
default value is 3600 (1 hour).

It is also possible to set variables by using --var_name=value. The
--set-variable format is deprecated.

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
http://www.gnu.org/licenses/.

SEE ALSO
For more information, please refer to the MySQL Reference Manual, which
may already be installed locally and which is also available online at
http://dev.mysql.com/doc/.

AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/).

MySQL 5.0 05/29/2009 MYSQLADMIN(1)

mysqladmin

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