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Thursday, October 7, 2010

mysqladmin (options variables commands)

# /usr/bin/mysqladmin -u root -p
/usr/bin/mysqladmin  Ver 8.42 Distrib 5.1.46, for suse-linux-gnu on x86_64
Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
Administration program for the mysqld daemon.
Usage: /usr/bin/mysqladmin [OPTIONS] command command....
  -?, --help          Display this help and exit.
  -c, --count=#       Number of iterations to make. This works with -i
                      (--sleep) only.
  --debug-check       Check memory and open file usage at exit.
  --debug-info        Print some debug info at exit.
  -f, --force         Don't ask for confirmation on drop database; with
                      multiple commands, continue even if an error occurs.
  -C, --compress      Use compression in server/client protocol.
                      Directory for character set files.
                      Set the default character set.
  -h, --host=name     Connect to host.
  -b, --no-beep       Turn off beep on error.
  -p, --password[=name]
                      Password to use when connecting to server. If password is
                      not given it's asked from the tty.
  -P, --port=#        Port number to use for connection or 0 for default to, in
                      order of preference, my.cnf, $MYSQL_TCP_PORT,
                      /etc/services, built-in default (3306).
  --protocol=name     The protocol to use for connection (tcp, socket, pipe,
  -r, --relative      Show difference between current and previous values when
                      used with -i. Currently only works with extended-status.
  -O, --set-variable=name
                      Change the value of a variable. Please note that this
                      option is deprecated; you can set variables directly with
  -s, --silent        Silently exit if one can't connect to server.
  -S, --socket=name   The socket file to use for connection.
  -i, --sleep=#       Execute commands repeatedly with a sleep between.
  --ssl               Enable SSL for connection (automatically enabled with
                      other flags). Disable with --skip-ssl.
  --ssl-ca=name       CA file in PEM format (check OpenSSL docs, implies
  --ssl-capath=name   CA directory (check OpenSSL docs, implies --ssl).
  --ssl-cert=name     X509 cert in PEM format (implies --ssl).
  --ssl-cipher=name   SSL cipher to use (implies --ssl).
  --ssl-key=name      X509 key in PEM format (implies --ssl).
                      Verify server's "Common Name" in its cert against
                      hostname used when connecting. This option is disabled by
  -u, --user=name     User for login if not current user.
  -v, --verbose       Write more information.
  -V, --version       Output version information and exit.
  -E, --vertical      Print output vertically. Is similar to --relative, but
                      prints output vertically.
  -w, --wait[=#]      Wait and retry if connection is down.

Variables (--variable-name=value)
and boolean options {FALSE|TRUE}  Value (after reading options)
--------------------------------- -----------------------------
count                             0
debug-check                       FALSE
debug-info                        FALSE
force                             FALSE
compress                          FALSE
character-sets-dir                (No default value)
default-character-set             (No default value)
host                              (No default value)
no-beep                           FALSE
port                              3306
relative                          FALSE
socket                            /var/run/mysql/mysql.sock
sleep                             0
ssl                               FALSE
ssl-ca                            (No default value)
ssl-capath                        (No default value)
ssl-cert                          (No default value)
ssl-cipher                        (No default value)
ssl-key                           (No default value)
ssl-verify-server-cert            FALSE
user                              root
verbose                           FALSE
vertical                          FALSE
connect_timeout                   43200
shutdown_timeout                  3600

Default options are read from the following files in the given order:
/etc/mysql/my.cnf /etc/my.cnf ~/.my.cnf
The following groups are read: mysqladmin client
The following options may be given as the first argument:
--print-defaults        Print the program argument list and exit.
--no-defaults           Don't read default options from any option file.
--defaults-file=#       Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.

Where command is a one or more of: (Commands may be shortened)
  create databasename   Create a new database
  debug                 Instruct server to write debug information to log
databasename     Delete a database and all its tables
  extended-status       Gives an extended status message from the server
  flush-hosts           Flush all cached hosts
  flush-logs            Flush all logs
  flush-status          Clear status variables
  flush-tables          Flush all tables
  flush-threads         Flush the thread cache
  flush-privileges      Reload grant tables (same as reload)
  kill id,id,...        Kill mysql threads
new-password Change old password to new-password, MySQL 4.1 hashing.
new-password Change old password to new-password in old format.
  ping                  Check if mysqld is alive
  processlist           Show list of active threads in server
  reload                Reload grant tables
  refresh               Flush all tables and close and open logfiles
  shutdown              Take server down
  status                Gives a short status message from the server
  start-slave           Start slave
  stop-slave            Stop slave
  variables             Prints variables available
  version               Get version info from server

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