Overview of MySQL Programs • mysql_migrate_keyring •  mysqlbinlog •  mysqldumpslow • mysql_config •  my_print_defaults •  lz4_decompress •  perror •  zlib_decompress A utility for migrating keys between one keyring component and another. See Section 4.6.8, “mysql_migrate_keyring — Keyring Key Migration Utility” . 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 4.6.9, “mysqlbinlog — Utility for Processing Binary Log Files” . A utility to read and summarize the contents of a slow query log. See Section 4.6.10, “mysqldumpslow — Summarize Slow Query Log Files” . MySQL program-development utilities: A shell script that produces the option values needed when compiling MySQL programs. See Section 4.7.1, “mysql_config — Display Options for Compiling Clients” . A utility that shows which options are present in option groups of option files. See Section 4.7.2, “my_print_defaults — Display Options from Option Files” . Miscellaneous utilities: A utility that decompresses  mysqlpump  output that was created using LZ4 compression. See Section 4.8.1, “lz4_decompress — Decompress mysqlpump LZ4-Compressed Output” . A utility that displays the meaning of system or MySQL error codes. See Section 4.8.2, “perror — Display MySQL Error Message Information” . A utility that decompresses  mysqlpump  output that was created using ZLIB compression. See Section 4.8.3, “zlib_decompress — Decompress mysqlpump ZLIB-Compressed Output” . Oracle Corporation also provides the MySQL Workbench GUI tool, which is used to administer MySQL servers and databases, to create, execute, and evaluate queries, and to migrate schemas and data from other relational database management systems for use with MySQL. MySQL client programs that communicate with the server using the MySQL client/server library use the following environment variables. Environment Variable Meaning MYSQL_UNIX_PORT The default Unix socket file; used for connections to localhost MYSQL_TCP_PORT The default port number; used for TCP/IP connections 341