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MYSQLADMIN(1)                         MySQL Database System                         MYSQLADMIN(1)



NAME
       mysqladmin - client for administering a MySQL server

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.

       o  flush-threads

          Flush the thread cache.

       o  kill id,id,...

          Kill server threads. If multiple thread ID values are given, there must be no spaces in
          the list.

       o  old-password new-password

          This is like the password command but stores the password using the old (pre-4.1)
          password-hashing format. (See Section 4.9, "Password Hashing as of MySQL 4.1".)

       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"

       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 5.4.21, "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  start-slave

          Start replication on a slave server.

       o  status

          Display a short server status message.

       o  stop-slave

          Stop replication on a slave 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:

          shell> mysqladmin proc stat
          +----+-------+-----------+----+---------+------+-------+------------------+
          | Id | User  | Host      | db | Command | Time | State | Info             |
          +----+-------+-----------+----+---------+------+-------+------------------+
          | 51 | monty | localhost |    | Query   | 0    |       | show processlist |
          +----+-------+-----------+----+---------+------+-------+------------------+
          Uptime: 1473624  Threads: 1  Questions: 39487
          Slow queries: 0  Opens: 541  Flush tables: 1
          Open tables: 19  Queries per second avg: 0.0268

       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 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.

       o  Memory in use

          The amount of memory allocated directly by mysqld. This value is displayed only when
          MySQL has been compiled with --with-debug=full.

       o  Maximum memory used

          The maximum amount of memory allocated directly by mysqld. This value is displayed only
          when MySQL has been compiled with --with-debug=full.


       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 following options:

       Table 4.3. mysqladmin Option Reference
       +-------------------------------------+------------------------+---------------------+------------+
       |Format                               | Config File            | Description         | Introduced |
       +-------------------------------------+------------------------+---------------------+------------+
       |--compress                           | compress               | Compress all        |            |
       +-------------------------------------+------------------------+ information sent    +------------+
       |-f                                   |                        | between the client  |            |
       |                                     |                        | and the server      |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--help                               |                        | Display help        |            |
       +-------------------------------------+------------------------+ message and exit    +------------+
       |-?                                   |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--host=host_name                     | host                   | Connect to the      |            |
       +-------------------------------------+------------------------+ MySQL server on the +------------+
       |-h host_name                         |                        | given host          |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--password[=password]                | password               | The password to use |            |
       +-------------------------------------+------------------------+ when connecting to  +------------+
       |-p[password]                         |                        | the server          |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--port=port_num                      | port                   | The TCP/IP port     |            |
       +-------------------------------------+------------------------+ number to use for   +------------+
       |-P port_num                          |                        | the connection      |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--protocol={TCP|SOCKET|PIPE|MEMORY}  | protocol               | The connection      |            |
       +-------------------------------------+------------------------+ protocol to use     +------------+
       |-C                                   |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--r                                  | relative               | Show the difference |            |
       +-------------------------------------+------------------------+ between the current +------------+
       |--relative                           |                        | and previous values |            |
       |                                     |                        | when  used with the |            |
       |                                     |                        | --sleep option      |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--shutdown_timeout=seconds           | shutdown_timeout       | The maximum number  |            |
       |                                     |                        | of seconds to wait  |            |
       |                                     |                        | for server shutdown |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--silent                             | silent                 |                     |            |
       +-------------------------------------+------------------------+ Silent mode         +------------+
       |-s                                   |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--sleep=delay                        | sleep                  | Execute commands    |            |
       +-------------------------------------+------------------------+ repeatedly,         +------------+
       |-s delay                             |                        | sleeping for delay  |            |
       |                                     |                        | seconds in between  |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--socket=path                        | socket                 | For connections to  |            |
       +-------------------------------------+------------------------+ localhost           +------------+
       |-S path                              |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-ca=file_name                   | ssl-ca                 | The path to a file  |            |
       |                                     |                        | that contains a     |            |
       |                                     |                        | list of trusted SSL |            |
       |                                     |                        | CAs                 |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--connect_timeout=seconds            | connect_timeout        | The number of       |            |
       |                                     |                        | seconds before      |            |
       |                                     |                        | connection timeout  |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-capath=directory_name          | ssl-capath             | The path to a       |            |
       |                                     |                        | directory that      |            |
       |                                     |                        | contains trusted    |            |
       |                                     |                        | SSL CA certificates |            |
       |                                     |                        | in PEM format       |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-cert=file_name                 | ssl-cert               | The name of the SSL |            |
       |                                     |                        | certificate file to |            |
       |                                     |                        | use for             |            |
       |                                     |                        | establishing a      |            |
       |                                     |                        | secure connection   |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-cipher=cipher_list             | ssl-cipher             | A list of allowable |            |
       |                                     |                        | ciphers to use for  |            |
       |                                     |                        | SSL encryption      |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-key=file_name                  | ssl-key                | The name of the SSL |            |
       |                                     |                        | key file to use for |            |
       |                                     |                        | establishing a      |            |
       |                                     |                        | secure  connection  |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--ssl-verify-server-cert             | ssl-verify-server-cert | The server's Common |            |
       |                                     |                        | Name value in its   |            |
       |                                     |                        | certificate is      |            |
       |                                     |                        | verified  against   |            |
       |                                     |                        | the hostname used   |            |
       |                                     |                        | when connecting to  |            |
       |                                     |                        | the server          |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--user=user_name,                    | user                   | The MySQL username  |            |
       +-------------------------------------+------------------------+ to use when         +------------+
       |-u user_name                         |                        | connecting to the   |            |
       |                                     |                        | server              |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--verbose                            |                        |                     |            |
       +-------------------------------------+------------------------+ Verbose mode        +------------+
       |-v                                   |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--version                            |                        | Display version     |            |
       |                                     |                        | information and     |            |
       |                                     |                        | exit                |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--count=N                            | count                  | The number of       |            |
       +-------------------------------------+------------------------+ iterations to make  +------------+
       |-V                                   |                        | for repeated        |            |
       |                                     |                        | command execution   |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--vertical                           | vertical               | Print query output  |            |
       +-------------------------------------+------------------------+ rows vertically     +------------+
       |-E                                   |                        | (one line per       |            |
       |                                     |                        | column value)       |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--wait                               | wait                   | If the connection   |            |
       +-------------------------------------+------------------------+ cannot be           +------------+
       |-w                                   |                        | established, wait   |            |
       +-------------------------------------+------------------------+ and retry instead   +------------+
       |-c N                                 |                        | of  aborting        |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |-# [debug_options]                   | debug                  | Write a debugging   |            |
       +-------------------------------------+------------------------+ log                 +------------+
       |--debug[=debug_options]              |                        |                     |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--default-character-set=charset_name | default-character-set  | Use charset_name as |            |
       |                                     |                        | the default         |            |
       |                                     |                        | character set       |            |
       +-------------------------------------+------------------------+---------------------+------------+
       |--force                              | force                  | Continue even if an |            |
       |                                     |                        | SQL error occurs    |            |
       +-------------------------------------+------------------------+---------------------+------------+

       o  --help, -?

          Display a help message and exit.

       o  --character-sets-dir=path

          The directory where character sets are installed. See Section 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. This works only with
          the --sleep option.

       o  --debug[=debug_options], -# [debug_options]

          Write a debugging log. The debug_options string often 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 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 --password or -p option on the command line, you are
          prompted for one.

          Specifying a password on the command line should be considered insecure. See
          Section 5.6, "Keeping Your Password Secure".

       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.

       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.

       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 5.7.3, "SSL Command
          Options".

       o  --user=user_name, -u user_name

          The MySQL username 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

          Print output vertically. This is similar to --relative, but prints output vertically.

       o  --wait[=count], -w[count]

          If the connection cannot be established, wait and retry instead of aborting. If a count
          value is given, it indicates the number of times to retry. The default is one time.


       You can also set the following variables by using --var_name=value 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 --set-variable=var_name=value or -O
       var_name=value syntax.  This syntax is deprecated.

COPYRIGHT
       Copyright 2007-2008 MySQL AB

       This documentation is free software; you can redistribute it and/or modify it 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
       MySQL AB (http://www.mysql.com/).



MySQL 5.0                                   01/11/2008                              MYSQLADMIN(1)

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