Provided by: mysql-client-core-8.0_8.0.17-0ubuntu2_amd64 bug

NAME

       mysqlshow - display database, table, and column information

SYNOPSIS

       mysqlshow [options] [db_name [tbl_name [col_name]]]

DESCRIPTION

       The mysqlshow client can be used to quickly see which databases exist, their tables, or a
       table's columns or indexes.

       mysqlshow provides a command-line interface to several SQL SHOW statements. See
       Section 13.7.6, “SHOW Syntax”. The same information can be obtained by using those
       statements directly. For example, you can issue them from the mysql client program.

       Invoke mysqlshow like this:

           shell> mysqlshow [options] [db_name [tbl_name [col_name]]]

       ·   If no database is given, a list of database names is shown.

       ·   If no table is given, all matching tables in the database are shown.

       ·   If no column is given, all matching columns and column types in the table are shown.

       The output displays only the names of those databases, tables, or columns for which you
       have some privileges.

       If the last argument contains shell or SQL wildcard characters (*, ?, %, or _), only those
       names that are matched by the wildcard are shown. If a database name contains any
       underscores, those should be escaped with a backslash (some Unix shells require two) to
       get a list of the proper tables or columns.  * and ?  characters are converted into SQL %
       and _ wildcard characters. This might cause some confusion when you try to display the
       columns for a table with a _ in the name, because in this case, mysqlshow shows you only
       the table names that match the pattern. This is easily fixed by adding an extra % last on
       the command line as a separate argument.

       mysqlshow supports the following options, which can be specified on the command line or in
       the [mysqlshow] and [client] groups of an option file. For information about option files
       used by MySQL programs, see Section 4.2.2.2, “Using Option Files”.

       ·   --help, -?

           Display a help message and exit.

       ·   --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.

       ·   --character-sets-dir=dir_name

           The directory where character sets are installed. See Section 10.14, “Character Set
           Configuration”.

       ·   --compress, -C

           Compress all information sent between the client and the server if both support
           compression.

       ·   --count

           Show the number of rows per table. This can be slow for non-MyISAM tables.

       ·   --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.

       ·   --debug-check

           Print some debugging information when the program exits.

       ·   --debug-info

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

       ·   --default-character-set=charset_name

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

       ·   --default-auth=plugin

           A hint about the client-side authentication plugin to use. See Section 6.2.17,
           “Pluggable Authentication”.

       ·   --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.

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --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.

           Exception: Even with --defaults-file, client programs read .mylogin.cnf.

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --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, mysqlshow normally reads the [client] and [mysqlshow]
           groups. If the --defaults-group-suffix=_other option is given, mysqlshow also reads
           the [client_other] and [mysqlshow_other] groups.

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --enable-cleartext-plugin

           Enable the mysql_clear_password cleartext authentication plugin. (See Section 6.4.1.4,
           “Client-Side Cleartext Pluggable Authentication”.)

       ·   --get-server-public-key

           Request from the server the RSA public key that it uses for key pair-based password
           exchange. This option applies to clients that connect to the server using an account
           that authenticates with the caching_sha2_password authentication plugin. For
           connections by such accounts, the server does not send the public key to the client
           unless requested. The option is ignored for accounts that do not authenticate with
           that plugin. It is also ignored if RSA-based password exchange is not needed, as is
           the case when the client connects to the server using a secure connection.

           If --server-public-key-path=file_name is given and specifies a valid public key file,
           it takes precedence over --get-server-public-key.

           For information about the caching_sha2_password plugin, see Section 6.4.1.3, “Caching
           SHA-2 Pluggable Authentication”.

       ·   --host=host_name, -h host_name

           Connect to the MySQL server on the given host.

       ·   --keys, -k

           Show table indexes.

       ·   --login-path=name

           Read options from the named login path in the .mylogin.cnf login path file. A “login
           path” is an option group containing options that specify which MySQL server to connect
           to and which account to authenticate as. To create or modify a login path file, use
           the mysql_config_editor utility. See mysql_config_editor(1).

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --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).)

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --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, mysqlshow
           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.

       ·   --pipe, -W

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

       ·   --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 mysqlshow does not find it. See
           Section 6.2.17, “Pluggable Authentication”.

       ·   --port=port_num, -P port_num

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

       ·   --print-defaults

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

           For additional information about this and other option-file options, see
           Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling”.

       ·   --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 4.2.3, “Connecting to
           the MySQL Server”.

       ·   --secure-auth

           This option was removed in MySQL 8.0.3.

       ·   --server-public-key-path=file_name

           The path name to a file containing a client-side copy of the public key required by
           the server for RSA key pair-based password exchange. The file must be in PEM format.
           This option applies to clients that authenticate with the sha256_password or
           caching_sha2_password authentication plugin. This option is ignored for accounts that
           do not authenticate with one of those plugins. It is also ignored if RSA-based
           password exchange is not used, as is the case when the client connects to the server
           using a secure connection.

           If --server-public-key-path=file_name is given and specifies a valid public key file,
           it takes precedence over --get-server-public-key.

           For sha256_password, this option applies only if MySQL was built using OpenSSL.

           For information about the sha256_password and caching_sha2_password plugins, see
           Section 6.4.1.2, “SHA-256 Pluggable Authentication”, and Section 6.4.1.3, “Caching
           SHA-2 Pluggable Authentication”.

       ·   --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.

       ·   --show-table-type, -t

           Show a column indicating the table type, as in SHOW FULL TABLES. The type is BASE
           TABLE or VIEW.

       ·   --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.

       ·   --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 6.3.2, “Command Options
           for Encrypted Connections”.

       ·   --ssl-fips-mode={OFF|ON|STRICT} Controls whether to enable FIPS mode on the client
           side. The --ssl-fips-mode option differs from other --ssl-xxx options in that it is
           not used to establish encrypted connections, but rather to affect which cryptographic
           operations are permitted. See Section 6.5, “FIPS Support”.

           These --ssl-fips-mode values are permitted:

           ·   OFF: Disable FIPS mode.

           ·   ON: Enable FIPS mode.

           ·   STRICT: Enable “strict” FIPS mode.

               Note
               If the OpenSSL FIPS Object Module is not available, the only permitted value for
               --ssl-fips-mode is OFF. In this case, setting --ssl-fips-mode to ON or STRICT
               causes the client to produce a warning at startup and to operate in non-FIPS mode.

       ·   --status, -i

           Display extra information about each table.

       ·   --tls-ciphersuites=ciphersuite_list

           For client programs, specifies which TLSv1.3 ciphersuites the client permits for
           encrypted connections. The value is a list of one or more colon-separated ciphersuite
           names. The ciphersuites that can be named for this option depend on the SSL library
           used to compile MySQL. For details, see Section 6.3.6, “Encrypted Connection Protocols
           and Ciphers”.

           This option was added in MySQL 8.0.16.

       ·   --tls-version=protocol_list

           The protocols the client permits for encrypted connections. The value is a list of one
           or more comma-separated protocol names. The protocols that can be named for this
           option depend on the SSL library used to compile MySQL. For details, see
           Section 6.3.6, “Encrypted Connection Protocols and Ciphers”.

       ·   --user=user_name, -u user_name

           The MySQL user name to use when connecting to the server.

       ·   --verbose, -v

           Verbose mode. Print more information about what the program does. This option can be
           used multiple times to increase the amount of information.

       ·   --version, -V

           Display version information and exit.

COPYRIGHT

       Copyright © 1997, 2019, 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/).