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:
mysqladmin supports the following commands. Some of the commands take an argument following the command name.
Create a new database named
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 18.4.5, "Event Scheduler Status".
Delete the database named
db_name and all its tables.
Display the server status variables and their values.
Flush all information in the host cache.
Flush all logs.
Reload the grant tables (same as
Clear status variables.
Flush all tables.
Flush the thread cache.
Kill server threads. If multiple thread ID values are given, there must be no spaces in the list.
This is like the
password command but stores the password using the old
(pre-4.1) password-hashing format. (See Section
220.127.116.11, "Password Hashing in MySQL".)
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.
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:
mysqladmin password "my new password"
In MySQL 5.7, the new password can be omitted following the
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.
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
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
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
SHOW PROCESSLIST Syntax".)
Reload the grant tables.
Flush all tables and close and open log files.
Stop the server.
Start replication on a slave server.
Display a short server status message.
Stop replication on a slave server.
Display the server system variables and their values.
Display version information from the server.
All commands can be shortened to any unique prefix. For example:
mysqladmin proc stat+----+-------+-----------+----+---------+------+-------+------------------+| Id | User | Host | db | Command | Time | State | Info |+----+-------+-----------+----+---------+------+-------+------------------+| 51 | monty | localhost | | Query | 0 | | show processlist |+----+-------+-----------+----+---------+------+-------+------------------+Uptime: 1473624 Threads: 1 Questions: 39487Slow queries: 0 Opens: 541 Flush tables: 1Open tables: 19 Queries per second avg: 0.0268
The mysqladmin status command result displays the following values:
The number of seconds the MySQL server has been running.
The number of active threads (clients).
The number of questions (queries) from clients since the server was started.
The number of tables the server has opened.
The number of
reload commands the server has executed.
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
groups of an option file. mysqladmin also supports the options for processing option
files described at Section 18.104.22.168,
"Command-Line Options that Affect Option-File Handling".
|--bind-address=ip_address||bind-address||Use the specified network interface to connect to the MySQL Server|
|--compress||compress||Compress all information sent between the client and the server|
|--connect_timeout=seconds||connect_timeout||The number of seconds before connection timeout|
|--count=#||count||The number of iterations to make for repeated command execution|
|--debug[=debug_options]||debug||Write a debugging log|
|--debug-check||debug-check||Print debugging information when the program exits|
|--debug-info||debug-info||Print debugging information, memory and CPU statistics when the program exits|
|--default-auth=plugin||default-auth=plugin||The authentication plugin to use|
|--default-character-set=charset_name||default-character-set||Use charset_name as the default character set|
|--enable-cleartext-plugin||enable-cleartext-plugin||Enable cleartext authentication plugin|
|--force||force||Continue even if an SQL error occurs|
|--help||Display help message and exit|
|--host=host_name||host||Connect to the MySQL server on the given host|
|--login-path=name||Read login path options from .mylogin.cnf|
|--no-beep||no-beep||Do not beep when errors occur|
|--password[=password]||password||The password to use when connecting to the server|
|--pipe||On Windows, connect to server using a named pipe|
|--plugin-dir=path||plugin-dir=path||The directory where plugins are located|
|--port=port_num||port||The TCP/IP port number to use for the connection|
|--protocol=type||protocol||The connection protocol to use|
|--relative||relative||Show the difference between the current and previous values when used with the --sleep option|
|--show-warnings||show-warnings||Show warnings after statement execution||5.7.2|
|--shutdown_timeout=seconds||shutdown_timeout||The maximum number of seconds to wait for server shutdown|
|--sleep=delay||sleep||Execute commands repeatedly, sleeping for delay seconds in between|
|--socket=path||socket||For connections to localhost|
|--ssl-ca=file_name||ssl-ca||The path to a file that contains a list of trusted SSL CAs|
|--ssl-capath=dir_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-crl=file_name||ssl-crl||The path to a file that contains certificate revocation lists|
|--ssl-crlpath=dir_name||ssl-crlpath||The path to a directory that contains certificate revocation list files|
|--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 host name used when connecting to the server|
|--user=user_name,||user||MySQL user name to use when connecting to server|
|--version||Display version information and exit|
|--vertical||vertical||Print query output rows vertically (one line per column value)|
|--wait||wait||If the connection cannot be established, wait and retry instead of aborting|
Display a help message and exit.
On a computer having multiple network interfaces, this option can be used to select which interface is employed when connecting to the MySQL server.
The directory where character sets are installed. See Section 10.5, "Character Set Configuration".
Compress all information sent between the client and the server if both support compression.
The number of iterations to make for repeated command execution if the
--sleep option is given.
Write a debugging log. A typical
debug_options string is
Print some debugging information when the program exits.
Print debugging information and memory and CPU usage statistics when the program exits.
The client-side authentication plugin to use. See Section 6.3.7, "Pluggable Authentication".
charset_name as the default character set. See Section 10.5, "Character Set Configuration".
mysql_clear_password cleartext authentication plugin. (See
Section 22.214.171.124, "The Cleartext
Client-Side Authentication Plugin".)
Do not ask for confirmation for the
drop command. With multiple commands, continue
even if an error occurs.
Connect to the MySQL server on the given host.
Suppress the warning beep that is emitted by default for errors such as a failure to connect to the server.
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
-p option on the command
line, mysqladmin prompts for one.
Specifying a password on the command line should be considered insecure. See Section 126.96.36.199, "End-User Guidelines for Password Security". You can use an option file to avoid giving the password on the command line.
On Windows, connect to the server using a named pipe. This option applies only if the server supports named-pipe connections.
The directory in which to look for plugins. It may be necessary to specify this option if the
option is used to specify an authentication plugin but mysqladmin does not find it. See Section
6.3.7, "Pluggable Authentication".
The TCP/IP port number to use for the connection.
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".
Show the difference between the current and previous values when used with the
--sleep option. This option works only with the
Show warnings resulting from execution of statements sent to the server. This option was added in MySQL 5.7.2.
Exit silently if a connection to the server cannot be established.
Execute commands repeatedly, sleeping for
delay seconds in
option determines the number of iterations. If
--count is not given, mysqladmin executes commands indefinitely until
For connections to
localhost, the Unix socket file to use, or, on
Windows, the name of the named pipe to use.
The MySQL user name to use when connecting to the server.
Verbose mode. Print more information about what the program does.
Display version information and exit.
Print output vertically. This is similar to
--relative, but prints output vertically.
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