mysqladmin - client for administering a MySQL server
mysqladmin [options] command [command-options] [command [command-options]] ...
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. 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.
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 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.
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"
In MySQL 5.6, 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
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 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.
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.
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, 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 beginning with MySQL 5.6.1.
o --character-sets-dir=path
The directory where character sets are installed. See Section 10.5,
"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.
o --debug-info
Print debugging information and memory and CPU usage statistics
when the program exits.
o --default-auth=plugin
The client-side authentication plugin to use. See Section 6.3.7,
"Pluggable Authentication".
o --default-character-set=charset_name
Use charset_name as the default character set. See Section 10.5,
"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. file_name is interpreted
relative to the current directory if given as a relative path name
rather than a full 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. file_name is interpreted
relative to the current directory if given as a relative path name
rather than a full 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
Enable the mysql_clear_password cleartext authentication plugin.
(See Section 6.3.8.7, "The Cleartext Client-Side Authentication
Plugin".) This option was added in MySQL 5.6.7.
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 --login-path=name
Read options from the named login path in the .mylogin.cnf login
file. A "login path" is an option group that permits only a limited
set of options: host, user, and password. Think of a login path as
a set of values that indicate the server host and the credentials
for authenticating with the server. To create the login file, use
the mysql_config_editor utility. See mysql_config_editor(1). This
option was added in MySQL 5.6.6.
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.
The exception is that the .mylogin.cnf file, if it exists, is read
in all cases. This permits passwords to be specified in a safer way
than on the command line even when --no-defaults is used.
(.mylogin.cnf is created by the mysql_config_editor utility. See
mysql_config_editor(1).)
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=path
The directory in which to look for plugins. It may be necessary to
specify this option if the --default-auth option is used to specify
an authentication plugin but mysqladmin does not find it. See
Section 6.3.7, "Pluggable Authentication".
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
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 --secure-auth
Do not send passwords to the server in old (pre-4.1) format. This
prevents connections except for servers that use the newer password
format. This option is enabled by default; use --skip-secure-auth
to disable it. This option was added in MySQL 5.6.17.
Note
Passwords that use the pre-4.1 hashing method are less secure
than passwords that use the native password hashing method and
should be avoided. Pre-4.1 passwords are deprecated and support
for them will be removed in a future MySQL release. For account
upgrade instructions, see Section 6.3.8.3, "Migrating Away from
Pre-4.1 Password Hashing and the mysql_old_password Plugin".
o --shared-memory-base-name=name
On Windows, the shared-memory name to use, for connections made
using shared memory to a local server. The default value is 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 6.3.10.4, "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.
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, 2014, 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/.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | database/mysql-56/client |
+---------------+--------------------------+
|Stability | Uncommitted |
+---------------+--------------------------+
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/).
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original community
source was downloaded from
http://downloads.mysql.com/archives/mysql-5.6/mysql-5.6.21.tar.gz
Further information about this software can be found on the open source
community website at http://dev.mysql.com/.
MySQL 5.6 09/11/2014 MYSQLADMIN(1)