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Version number: Ver 9.10 Distrib 10.3.34-MariaDB, for debian-linux-gnu (x86_64)
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The manual page and help for the mysqlshow linux command. The mysqlshow command provides a quick overview of the status information for our databases, tables, and table fields.
Man page output
man mysqlshowMYSQLSHOW(1) MariaDB Database System MYSQLSHOW(1)
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. 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]
option file groups. mysqlshow also supports the options for processing option files described.
• --help, -?
Display a help message and exit.
• --character-sets-dir=path, -c path
The directory where character sets are installed.
• --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-auth=name
Default authentication client-side plugin to use.
• --default-character-set=charset_name
Use charset_name as the default character set.
• --defaults-extra-file=filename
Set filename as the file to read default options from after the global defaults files has been read. Must be given as
first option.
• --defaults-file=filename
Set filename as the file to read default options from, override global defaults files. Must be given as first option.
• --defaults-group-suffix=suffix
In addition to the groups named on the command line, read groups that have the given suffix.
• --host=host_name, -h host_name
Connect to the MariaDB server on the given host.
• --keys, -k
Show table indexes.
• --no-defaults
Do not read default options from any option file. This must be given as the first argument.
• --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. You can use an option file to avoid giving the
password on the command line.
• --pipe, -W
On Windows, connect to the server via a named pipe. This option applies only if the server supports named-pipe
connections.
• --plugin-dir=dir_name
Directory for client-side plugins.
• --port=port_num, -P port_num
The TCP/IP port number to use for the connection.
• --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.
• --print-defaults
Print the program argument list and exit. This must be given as the first argument.
• --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
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).
• --ssl-capath=name
CA directory (check OpenSSL docs, implies --ssl).
• --ssl-cert=name
X509 cert in PEM format (check OpenSSL docs, implies --ssl).
• --ssl-cipher=name
SSL cipher to use (check OpenSSL docs, implies --ssl).
• --ssl-key=name
X509 key in PEM format (check OpenSSL docs, implies --ssl).
• --ssl-crl=name
Certificate revocation list (check OpenSSL docs, implies --ssl).
• --ssl-crlpath=name
Certificate revocation list path (check OpenSSL docs, implies --ssl).
• --ssl-verify-server-cert
Verify server's "Common Name" in its cert against hostname used when connecting. This option is disabled by default.
• --status, -i
Display extra information about each table.
• --user=user_name, -u user_name
The MariaDB 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 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2015 MariaDB Foundation
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 02110-1335 USA or see http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MariaDB Knowledge Base, available online at https://mariadb.com/kb/
AUTHOR
MariaDB Foundation (http://www.mariadb.org/).
MariaDB 10.3 9 May 2017 MYSQLSHOW(1)
Help output
mysqlshow --helpmysqlshow Ver 9.10 Distrib 10.3.34-MariaDB, for debian-linux-gnu (x86_64)
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Shows the structure of a MySQL database (databases, tables, and columns).
Usage: mysqlshow [OPTIONS] [database [table [column]]]
If last argument contains a shell or SQL wildcard (*,?,% or _) then only
what's matched by the wildcard is shown.
If no database is given then all matching databases are shown.
If no table is given, then all matching tables in database are shown.
If no column is given, then all matching columns and column types in table
are shown.
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf
The following groups are read: mysqlshow client client-server client-mariadb
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.
The following specify which files/extra groups are read (specified before remaining options):
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
--defaults-group-suffix=# Additionally read default groups with # appended as a suffix.
-c, --character-sets-dir=name
Directory for character set files.
--default-character-set=name
Set the default character set.
--count Show number of rows per table (may be slow for non-MyISAM
tables).
-C, --compress Use compression in server/client protocol.
-#, --debug[=name] Output debug log. Often this is 'd:t:o,filename'.
--debug-check Check memory and open file usage at exit.
--debug-info Print some debug info at exit.
--default-auth=name Default authentication client-side plugin to use.
-?, --help Display this help and exit.
-h, --host=name Connect to host.
-i, --status Shows a lot of extra information about each table.
-k, --keys Show keys for table.
-p, --password[=name]
Password to use when connecting to server. If password is
not given, it's solicited on the tty.
--plugin-dir=name Directory for client-side plugins.
-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,
memory).
-t, --show-table-type
Show table type column.
-S, --socket=name The socket file to use for connection.
--ssl Enable SSL for connection (automatically enabled with
other flags).
--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
--ssl).
--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).
--ssl-crl=name Certificate revocation list (implies --ssl).
--ssl-crlpath=name Certificate revocation list path (implies --ssl).
--ssl-verify-server-cert
Verify server's "Common Name" in its cert against
hostname used when connecting. This option is disabled by
default.
-u, --user=name User for login if not current user.
-v, --verbose More verbose output; you can use this multiple times to
get even more verbose output.
-V, --version Output version information and exit.
Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- ----------------------------------------
character-sets-dir (No default value)
default-character-set utf8mb4
count FALSE
compress FALSE
debug-check FALSE
debug-info FALSE
default-auth (No default value)
host (No default value)
status FALSE
keys FALSE
plugin-dir (No default value)
port 0
show-table-type FALSE
socket /var/run/mysqld/mysqld.sock
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-crl (No default value)
ssl-crlpath (No default value)
ssl-verify-server-cert FALSE
user (No default value)
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