/* Void Main's man pages */
{ phpMan } else { main(); }
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 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.
Beginning with MySQL 5.1.12, this includes information about the Event Scheduler. See Section 18.4.5, "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.
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 5.3.2.3, "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 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"
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 available. 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 12.4.5.31, "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 5.2.5, "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
--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, which can be specified on the command line or in the [mysqladmin] and [client]
groups of an option file. mysqladmin also supports the options for processing option files described at
Section 4.2.3.3.1, "Command-Line Options that Affect Option-File Handling".
o --help, -?
Display a help message and exit.
o --bind-address=ip_address
On a computer having multiple network interfaces, this option can be used to select which interface is employed when
connecting to the MySQL server.
This option is supported only in the version of mysqladmin that is supplied with MySQL Cluster, beginning with MySQL
Cluster NDB 6.3.4. It is not available in standard MySQL 5.1 releases.
o --character-sets-dir=path
The directory where character sets are installed. See Section 9.5, "Character Set Configuration".
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 --debug-check
Print some debugging information when the program exits. This option was added in MySQL 5.1.21.
o --debug-info
Print debugging information and memory and CPU usage statistics when the program exits. This option was added in
MySQL 5.1.14.
o --default-character-set=charset_name
Use charset_name as the default character set. See Section 9.5, "Character Set Configuration".
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 --no-beep, -b
Suppress the warning beep that is emitted by default for errors such as a failure to connect to the server. This
option was added in MySQL 5.1.17.
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 5.3.2.2, "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 --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 permissible 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. 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 using SSL and indicate where to find SSL keys
and certificates. See Section 5.5.6.3, "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
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 is removed
in MySQL 5.5.
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).
COPYRIGHT
Copyright (C) 1997, 2011, 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 5.1 10/26/2011 MYSQLADMIN(1)
