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 following commands. 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. The
           connected user must have the SUPER privilege. Format and content of
           this information is subject to change.

           This includes information about the Event Scheduler. See
           Section 20.4.5, "Event Scheduler Status".

       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.
           must be no spaces in the list.

           To kill threads belonging to other users, the connected user must
           have the SUPER privilege.

       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 6.1.2.4,
           "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.

               Warning
               Setting a password using mysqladmin should be considered
               insecure. On some systems, your password becomes visible to
               system status programs such as ps that may be invoked by other
               users to display command lines. MySQL clients typically
               overwrite the command-line password argument with zeros during
               their initialization sequence. However, there is still a brief
               interval during which the value is visible. Also, on some
               systems this overwriting strategy is ineffective and the
               password remains visible to ps. (SystemV Unix systems and
               perhaps others are subject to this problem.)
           If the new_password value contains spaces or other characters that
           are special to your command interpreter, you need to enclose it
           within quotation marks. On Windows, be sure to use double quotation
           marks rather than single quotation marks; single quotation marks
           are not stripped from the password, but rather are interpreted as
           part of the password. For example:

               shell> mysqladmin password "my new password"

           As of MySQL 5.5.3, the new password can be omitted following the
           password command. In this case, mysqladmin prompts for the password
           value, which enables you to avoid specifying the password on the
           command line. Omitting the password value should be done only if
           password is the final command on the mysqladmin command line.
           Otherwise, the next argument is taken as the 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

           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 13.7.5.30, "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.
           The number of queries that have taken more than long_query_time
           seconds. See Section 5.4.5, "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 safemalloc, which
           is available only before MySQL 5.5.6.

       o   Maximum memory used

           The maximum amount of memory allocated directly by mysqld. This
           value is displayed only when MySQL has been compiled with
           safemalloc, which is available only before MySQL 5.5.6.

       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, which can be specified on
       the command line or in the [mysqladmin] and [client] groups of an
       option file. For information about option files used by MySQL programs,
       see Section 4.2.6, "Using Option Files".

       o   --help, -?

           Display a help message and exit.

       o   --bind-address=ip_address

           On a computer having multiple network interfaces, use this option
           to select which interface to use for connecting to the MySQL
           server.

           This option is supported only in the version of mysqladmin that is
           supplied with NDB Cluster. It is not available in standard MySQL
           Server 5.5 releases.

       o   --character-sets-dir=dir_name


       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   --debug-check

           Print some debugging information when the program exits.

       o   --debug-info

           Print debugging information and memory and CPU usage statistics
           when the program exits.

       o   --default-auth=plugin

           A hint about the client-side authentication plugin to use. See
           Section 6.3.6, "Pluggable Authentication".

           This option was added in MySQL 5.5.9.

       o   --default-character-set=charset_name

           Use charset_name as the default character set. See Section 10.14,
           "Character Set Configuration".

       o   --defaults-extra-file=file_name

           Read this option file after the global option file but (on Unix)
           before the user option file. If the file does not exist or is
           otherwise inaccessible, an error occurs. Before MySQL 5.5.8,
           file_name must be the full path name to the file. As of MySQL
           5.5.8, the name is interpreted relative to the current directory if
           given as a relative path name.

       o   --defaults-file=file_name

           Use only the given option file. If the file does not exist or is
           otherwise inaccessible, an error occurs. Before MySQL 5.5.8,
           file_name must be the full path name to the file. As of MySQL
           5.5.8, the name is interpreted relative to the current directory if
           given as a relative path name.

       o   --defaults-group-suffix=str

           Read not only the usual option groups, but also groups with the
           usual names and a suffix of str. For example, mysqladmin normally
           reads the [client] and [mysqladmin] groups. If the
           --defaults-group-suffix=_other option is given, mysqladmin also
           reads the [client_other] and [mysqladmin_other] groups.

       o   --enable-cleartext-plugin


       o   --no-beep, -b

           Suppress the warning beep that is emitted by default for errors
           such as a failure to connect to the server.

       o   --no-defaults

           Do not read any option files. If program startup fails due to
           reading unknown options from an option file, --no-defaults can be
           used to prevent them from being read.

       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, mysqladmin prompts for
           one.

           Specifying a password on the command line should be considered
           insecure. See Section 6.1.2.1, "End-User Guidelines for Password
           Security". You can use an option file to avoid giving the password
           on the command line.

       o   --pipe, -W

           On Windows, connect to the server using a named pipe. This option
           applies only if the server supports named-pipe connections.

       o   --plugin-dir=dir_name

           The directory in which to look for plugins. Specify this option if
           the --default-auth option is used to specify an authentication
           plugin but mysqladmin does not find it. See Section 6.3.6,
           "Pluggable Authentication".

           This option was added in MySQL 5.5.9.

       o   --port=port_num, -P port_num

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

       o   --print-defaults

           Print the program name and all options that it gets from option
           files.

       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
           permissible values, see Section 4.2.2, "Connecting to the MySQL
           The shared-memory name is case-sensitive.

           The server must be started with the --shared-memory option to
           enable shared-memory connections.

       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 using SSL and indicate where to find SSL keys and
           certificates. See Section 6.4.2, "Command Options for Encrypted
           Connections".

       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

           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 The
       --set-variable format is deprecated and was removed in MySQL 5.5.3.
       syntax:
       Copyright (C) 1997, 2018, 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
       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
       Oracle Corporation (http://dev.mysql.com/).



MySQL 5.5                         06/15/2018                     MYSQLADMIN(1)
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