4.1. Overview of MySQL Programs

mysqld

The SQL daemon (that is, the MySQL server). To use client programs, mysqld must be running, because clients gain access to databases by connecting to the server. See Section 4.3.1, "mysqld — The MySQL Server".

mysqld_safe

A server startup script. mysqld_safe attempts to start mysqld. See Section 4.3.2, "mysqld_safe — MySQL Server Startup Script".

mysql.server

A server startup script. This script is used on systems that use System V-style run directories containing scripts that start system services for particular run levels. It invokes mysqld_safe to start the MySQL server. See Section 4.3.3, "mysql.server — MySQL Server Startup Script".

mysqld_multi

A server startup script that can start or stop multiple servers installed on the system. See Section 4.3.4, "mysqld_multi — Manage Multiple MySQL Servers".

comp_err

This program is used during the MySQL build/installation process. It compiles error message files from the error source files. See Section 4.4.1, "comp_err — Compile MySQL Error Message File".

mysql_install_db

This script creates the MySQL database, initializes the grant tables with default privileges, and sets up the InnoDB system tablespace. It is usually executed only once, when first installing MySQL on a system. See Section 4.4.3, "mysql_install_db — Initialize MySQL Data Directory", Section 2.10.1, "Unix Postinstallation Procedures", and Section 4.4.3, "mysql_install_db — Initialize MySQL Data Directory".

mysql_plugin

This program configures MySQL server plugins. See Section 4.4.4, "mysql_plugin — Configure MySQL Server Plugins".

mysql_secure_installation

This program enables you to improve the security of your MySQL installation. SQL. See Section 4.4.5, "mysql_secure_installation — Improve MySQL Installation Security".

mysql_tzinfo_to_sql

This program loads the time zone tables in the mysql database using the contents of the host system zoneinfo database (the set of files describing time zones). SQL. See Section 4.4.6, "mysql_tzinfo_to_sql — Load the Time Zone Tables".

mysql_upgrade

This program is used after a MySQL upgrade operation. It checks tables for incompatibilities and repairs them if necessary, and updates the grant tables with any changes that have been made in newer versions of MySQL. See Section 4.4.7, "mysql_upgrade — Check and Upgrade MySQL Tables".

mysql

The command-line tool for interactively entering SQL statements or executing them from a file in batch mode. See Section 4.5.1, "mysql — The MySQL Command-Line Tool".

mysqladmin

A client that performs administrative operations, such as creating or dropping databases, reloading the grant tables, flushing tables to disk, and reopening log files. mysqladmin can also be used to retrieve version, process, and status information from the server. See Section 4.5.2, "mysqladmin — Client for Administering a MySQL Server".

mysqlcheck

A table-maintenance client that checks, repairs, analyzes, and optimizes tables. See Section 4.5.3, "mysqlcheck — A Table Maintenance Program".

mysqldump

A client that dumps a MySQL database into a file as SQL, text, or XML. See Section 4.5.4, "mysqldump — A Database Backup Program".

mysqlimport

A client that imports text files into their respective tables using LOAD DATA INFILE. See Section 4.5.5, "mysqlimport — A Data Import Program".

mysqlshow

A client that displays information about databases, tables, columns, and indexes. See Section 4.5.6, "mysqlshow — Display Database, Table, and Column Information".

mysqlslap

A client that is designed to emulate client load for a MySQL server and report the timing of each stage. It works as if multiple clients are accessing the server. See Section 4.5.7, "mysqlslap — Load Emulation Client".

innochecksum

An offline InnoDB offline file checksum utility. See Section 4.6.1, "innochecksum — Offline InnoDB File Checksum Utility".

myisam_ftdump

A utility that displays information about full-text indexes in MyISAM tables. See Section 4.6.2, "myisam_ftdump — Display Full-Text Index information".

myisamchk

A utility to describe, check, optimize, and repair MyISAM tables. See Section 4.6.3, "myisamchk — MyISAM Table-Maintenance Utility".

myisamlog

A utility that processes the contents of a MyISAM log file. See Section 4.6.4, "myisamlog — Display MyISAM Log File Contents".

myisampack

A utility that compresses MyISAM tables to produce smaller read-only tables. See Section 4.6.5, "myisampack — Generate Compressed, Read-Only MyISAM Tables".

mysql_config_editor

A utility that enables you to store authentication credentials in a secure, encrypted login file named .mylogin.cnf. See Section 4.6.6, "mysql_config_editor — MySQL Configuration Utility".

mysqlaccess

A script that checks the access privileges for a host name, user name, and database combination. See Section 4.6.7, "mysqlaccess — Client for Checking Access Privileges".

mysqlbinlog

A utility for reading statements from a binary log. The log of executed statements contained in the binary log files can be used to help recover from a crash. See Section 4.6.8, "mysqlbinlog — Utility for Processing Binary Log Files".

mysqldumpslow

A utility to read and summarize the contents of a slow query log. See Section 4.6.9, "mysqldumpslow — Summarize Slow Query Log Files".

mysqlhotcopy

A utility that quickly makes backups of MyISAM tables while the server is running. See Section 4.6.10, "mysqlhotcopy — A Database Backup Program".

mysql_convert_table_format

A utility that converts tables in a database to use a given storage engine. See Section 4.6.11, "mysql_convert_table_format — Convert Tables to Use a Given StorageEngine".

mysql_find_rows

A utility that reads files containing SQL statements (such as update logs) and extracts statements that match a given regular expression. See Section 4.6.12, "mysql_find_rows — Extract SQL Statements from Files".

mysql_fix_extensions

A utility that converts the extensions for MyISAM table files to lowercase. This can be useful after transferring the files from a system with case-insensitive file names to a system with case-sensitive file names. See Section 4.6.13, "mysql_fix_extensions — Normalize Table File Name Extensions".

mysql_setpermission

A utility for interactively setting permissions in the MySQL grant tables. See Section 4.6.14, "mysql_setpermission — Interactively Set Permissions in GrantTables".

mysql_waitpid

A utility that kills the process with a given process ID. See Section 4.6.15, "mysql_waitpid — Kill Process and Wait for Its Termination".

mysql_zap

A utility that kills processes that match a pattern. See Section 4.6.16, "mysql_zap — Kill Processes That Match a Pattern".

msql2mysql

A shell script that converts mSQL programs to MySQL. It doesn't handle every case, but it gives a good start when converting. See Section 4.7.1, "msql2mysql — Convert mSQL Programs for Use with MySQL".

mysql_config

A shell script that produces the option values needed when compiling MySQL programs. See Section 4.7.2, "mysql_config — Display Options for Compiling Clients".

my_print_defaults

A utility that shows which options are present in option groups of option files. See Section 4.7.3, "my_print_defaults — Display Options from Option Files".

resolve_stack_dump

A utility program that resolves a numeric stack trace dump to symbols. See Section 4.7.4, "resolve_stack_dump — Resolve Numeric Stack Trace Dump to Symbols".

perror

A utility that displays the meaning of system or MySQL error codes. See Section 4.8.1, "perror — Explain Error Codes".

replace

A utility program that performs string replacement in the input text. See Section 4.8.2, "replace — A String-Replacement Utility".

resolveip

A utility program that resolves a host name to an IP address or vice versa. See Section 4.8.3, "resolveip — Resolve Host name to IP Address or ViceVersa".