Environment Variables

• These are the environment variables used directly or indirectly by MySQL.

  Variable	Description
  CXX	The name of the C++ compiler (for running configure).
  CC	The name of the C compiler (for running configure).
  CFLAGS	Flags for the C compiler (for running configure).
  CXXFLAGS	Flags for the C++ compiler (for running configure).
  DBI_USER	The default username for Perl DBI.
  DBI_TRACE	Trace options for Perl DBI.
  HOME	The default path for the history file is $HOME/.mysql_history.
  LD_RUN_PATH	Used to specify the location of libmysqlclient.so.
  MYSQL_DEBUG	Debug trace options when debugging.
  MYSQL_GROUP_SUFFIX	Option group suffix value (like specifying --defaults-group-suffix).
  MYSQL_HISTFILE	The path to the mysql history file. If this variable is set, its value overrides the default for $HOME/.mysql_history.
  MYSQL_HOME	The path to the directory in which the server-specific my.cnf file resides.
  MYSQL_HOST	The default hostname used by the mysql command-line client.
  MYSQL_PS1	The command prompt to use in the mysql command-line client.
  MYSQL_PWD	The default password when connecting to mysqld. Using this is insecure.
  MYSQL_TCP_PORT	The default TCP/IP port number.
  MYSQL_UNIX_PORT	The default Unix socket filename; used for connections to localhost.
  PATH	Used by the shell to find MySQL programs.
  TMPDIR	The directory where temporary files are created.
  TZ	This should be set to the local time zone.
  UMASK_DIR	The user directory creation mask when creating directories.
  UMASK	The file creation mask when creating files.
  USER	The default username on Windows and NetWare used when connecting to mysqld.

Let us review the chapter.

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© 2007 John Michael Pierobon

Notes