--help, -?

Display a help message and exit.

--auto-rehash

Enable automatic rehashing. This option is on by default, which enables database, table, and column name completion. Use --disable-auto-rehash to disable rehashing. That causes mysql to start faster, but you must issue the rehash command if you want to use name completion.

To complete a name, enter the first part and press Tab. If the name is unambiguous, mysql completes it. Otherwise, you can press Tab again to see the possible names that begin with what you have typed so far. Completion does not occur if there is no default database.

--batch, -B

Print results using tab as the column separator, with each row on a new line. With this option, mysql does not use the history file.

Batch mode results in nontabular output format and escaping of special characters. Escaping may be disabled by using raw mode; see the description for the --raw option.

--character-sets-dir=path

The directory where character sets are installed. See Section 9.5, “Character Set Configuration”.

--column-names

Write column names in results.

--column-type-info, -m

Display result set metadata. This option was added in MySQL 5.1.14. (Before that, use --debug-info.) The -m short option was added in MySQL 5.1.21.

--comments, -c

Whether to preserve comments in statements sent to the server. The default is --skip-comments (discard comments), enable with --comments (preserve comments). This option was added in MySQL 5.1.23.

--compress, -C

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

--database=db_name, -D db_name

The database to use. This is useful primarily in an option file.

--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/mysql.trace'.

--debug-check

Print some debugging information when the program exits. This option was added in MySQL 5.1.21.

--debug-info, -T

Before MySQL 5.1.14, this option prints debugging information and memory and CPU usage statistics when the program exits, and also causes display of result set metadata during execution. As of MySQL 5.1.14, use --column-type-info to display result set metadata.

--default-character-set=charset_name

Use charset_name as the default character set for the client and connection.

A common issue that can occur when the operating system uses utf8 or another multi-byte character set is that output from the mysql client is formatted incorrectly, due to the fact that the MySQL client uses the latin1 character set by default. You can usually fix such issues by using this option to force the client to use the system character set instead.

See Section 9.5, “Character Set Configuration”, for more information.

--delimiter=str

Set the statement delimiter. The default is the semicolon character (“;”).

--disable-named-commands

Disable named commands. Use the \* form only, or use named commands only at the beginning of a line ending with a semicolon (“;”). mysql starts with this option enabled by default. However, even with this option, long-format commands still work from the first line. See Section 4.5.1.2, “mysql Commands”.

--execute=statement, -e statement

Execute the statement and quit. The default output format is like that produced with --batch. See Section 4.2.3.1, “Using Options on the Command Line”, for some examples.

--force, -f

Continue even if an SQL error occurs.

--host=host_name, -h host_name

Connect to the MySQL server on the given host.

--html, -H

Produce HTML output.

--ignore-spaces, -i

Ignore spaces after function names. The effect of this is described in the discussion for the IGNORE_SPACE SQL mode (see Section 5.1.8, “Server SQL Modes”).

--line-numbers

Write line numbers for errors. Disable this with --skip-line-numbers.

--local-infile[={0|1}]

Enable or disable LOCAL capability for LOAD DATA INFILE. With no value, the option enables LOCAL. The option may be given as --local-infile=0 or --local-infile=1 to explicitly disable or enable LOCAL. Enabling LOCAL has no effect if the server does not also support it.

MySQL Enterprise.  For expert advice on the security implications of enabling LOCAL, subscribe to the MySQL Enterprise Monitor. For more information, see http://www.mysql.com/products/enterprise/advisors.html.

--named-commands, -G

Enable named mysql commands. Long-format commands are allowed, not just short-format commands. For example, quit and \q both are recognized. Use --skip-named-commands to disable named commands. See Section 4.5.1.2, “mysql Commands”.

--no-auto-rehash, -A

This has the same effect as -skip-auto-rehash. See the description for --auto-rehash.

--no-beep, -b

Do not beep when errors occur.

--no-named-commands, -g

Deprecated, use --disable-named-commands instead. --no-named-commands is removed in MySQL 5.5.

--no-pager

Deprecated form of --skip-pager. See the --pager option. --no-pager is removed in MySQL 5.5.

--no-tee

Deprecated form of --skip-tee. See the --tee option. --no-tee is removed in MySQL 5.5.

--one-database, -o

Ignore statements except those for the default database named on the command line. This is useful for skipping updates to other databases in the binary log.

--pager[=command]

Use the given command for paging query output. If the command is omitted, the default pager is the value of your PAGER environment variable. Valid pagers are less, more, cat [> filename], and so forth. This option works only on Unix and only in interactive mode. To disable paging, use --skip-pager. Section 4.5.1.2, “mysql Commands”, discusses output paging further.

--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, mysql prompts for one.

Specifying a password on the command line should be considered insecure. See Section 5.3.2.2, “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 via a named pipe. This option applies only if the server supports named-pipe connections.

--port=port_num, -P port_num

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

--prompt=format_str

Set the prompt to the specified format. The default is mysql>. The special sequences that the prompt can contain are described in Section 4.5.1.2, “mysql Commands”.

--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 allowable values, see Section 4.2.2, “Connecting to the MySQL Server”.

--quick, -q

Do not cache each query result, print each row as it is received. This may slow down the server if the output is suspended. With this option, mysql does not use the history file.

--raw, -r

For tabular output, the “boxing” around columns enables one column value to be distinguished from another. For nontabular output (such as is produced in batch mode or when the --batch or --silent option is given), special characters are escaped in the output so they can be identified easily. Newline, tab, NUL, and backslash are written as \n, \t, \0, and \\. The --raw option disables this character escaping.

The following example demonstrates tabular versus nontabular output and the use of raw mode to disable escaping:

% mysql
mysql> SELECT CHAR(92);
+----------+
| CHAR(92) |
+----------+
| \        |
+----------+

% mysql -s
mysql> SELECT CHAR(92);
CHAR(92)
\\

% mysql -s -r
mysql> SELECT CHAR(92);
CHAR(92)
\

--reconnect

If the connection to the server is lost, automatically try to reconnect. A single reconnect attempt is made each time the connection is lost. To suppress reconnection behavior, use --skip-reconnect.

--safe-updates, --i-am-a-dummy, -U

Allow only those UPDATE and DELETE statements that specify which rows to modify by using key values. If you have set this option in an option file, you can override it by using --safe-updates on the command line. See Section 4.5.1.5, “mysql Tips”, for more information about this option.

--secure-auth

Do not send passwords to the server in old (pre-4.1.1) format. This prevents connections except for servers that use the newer password format.

MySQL Enterprise.  For expert advice on database security, subscribe to the MySQL Enterprise Monitor. For more information, see http://www.mysql.com/products/enterprise/advisors.html.

--show-warnings

Cause warnings to be shown after each statement if there are any. This option applies to interactive and batch mode.

--sigint-ignore

Ignore SIGINT signals (typically the result of typing Control-C).

--silent, -s

Silent mode. Produce less output. This option can be given multiple times to produce less and less output.

This option results in nontabular output format and escaping of special characters. Escaping may be disabled by using raw mode; see the description for the --raw option.

--skip-column-names, -N

Do not write column names in results.

--skip-line-numbers, -L

Do not write line numbers for errors. Useful when you want to compare result files that include error messages.

--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 via SSL and indicate where to find SSL keys and certificates. See Section 5.5.6.3, “SSL Command Options”.

--table, -t

Display output in table format. This is the default for interactive use, but can be used to produce table output in batch mode.

--tee=file_name

Append a copy of output to the given file. This option works only in interactive mode. Section 4.5.1.2, “mysql Commands”, discusses tee files further.

--unbuffered, -n

Flush the buffer after each query.

--user=user_name, -u user_name

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

--verbose, -v

Verbose mode. Produce more output about what the program does. This option can be given multiple times to produce more and more output. (For example, -v -v -v produces table output format even in batch mode.)

--version, -V

Display version information and exit.

--vertical, -E

Print query output rows vertically (one line per column value). Without this option, you can specify vertical output for individual statements by terminating them with \G.

--wait, -w

If the connection cannot be established, wait and retry instead of aborting.

--xml, -X

Produce XML output.

<field name="column_name">NULL</field>

Beginning with MySQL 5.1.12, the output when --xml is used with mysql matches that of mysqldump --xml. See Section 4.5.4, “mysqldump — A Database Backup Program” for details.

Beginning with MySQL 5.1.18, the XML output also uses an XML namespace, as shown here:

shell> mysql --xml -uroot -e "SHOW VARIABLES LIKE 'version%'"
<?xml version="1.0"?>

<resultset statement="SHOW VARIABLES LIKE 'version%'" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="Variable_name">version</field>
<field name="Value">5.0.40-debug</field>
</row>

<row>
<field name="Variable_name">version_comment</field>
<field name="Value">Source distribution</field>
</row>

<row>
<field name="Variable_name">version_compile_machine</field>
<field name="Value">i686</field>
</row>

<row>
<field name="Variable_name">version_compile_os</field>
<field name="Value">suse-linux-gnu</field>
</row>
</resultset>

(See Bug#25946.)

connect_timeout

The number of seconds before connection timeout. (Default value is 0.)

max_allowed_packet

The maximum packet length to send to or receive from the server. (Default value is 16MB.)

max_join_size

The automatic limit for rows in a join when using --safe-updates. (Default value is 1,000,000.)

net_buffer_length

The buffer size for TCP/IP and socket communication. (Default value is 16KB.)

select_limit

The automatic limit for SELECT statements when using --safe-updates. (Default value is 1,000.)

Set the MYSQL_HISTFILE variable to /dev/null. To cause this setting to take effect each time you log in, put the setting in one of your shell's startup files.

Create .mysql_history as a symbolic link to /dev/null:

shell> ln -s /dev/null $HOME/.mysql_history

You need do this only once.