All i can find is this
under /etc/init.d/mysql
PATH=/sbin:/usr/sbin:/bin:/usr/bin
export PATH
# Set some defaults, don't change them here, use /etc/my.cnf
datadir=/var/lib/mysql
sockdir=/var/run/mysql
basedir=
pid_file=
and in the my.cnf we have
# Example mysql config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# a important part and systems up to 128M very MySQL is used together with
# other programs (like a web server)
#
# You can copy this file to
# /etc/mf.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /home/mysql/var) or
# ~/.my.cnf to set user-specific options.
#
# One can in this file use all long options that the program supports.
# If you want to know which options a program support, run the program
# with --help option.
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/run/mysql/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /var/run/mysql/mysql.sock
skip-networking
[mysqldump]
[mysql]
[isamchk]
[myisamchk]
[mysqlhotcopy]
TT