# 起動していたら停止
% sudo /opt/local/share/mysql5/mysql/mysql.server stop
% sudo launchctl load -w /Library/LaunchDaemons/org.macports.mysql5.plist

# ここに入っている + pathは通しておく
% which mysql5
/opt/local/bin/mysql5

# エラーになるのでリンクを張っておく等
% sudo ln -s /opt/local/bin/my_print_defaults5 /opt/local/bin/my_print_defaults
% mkdir -p /Users/satoshi.tanaka/var/mysql1
% mkdir -p /Users/satoshi.tanaka/var/mysql2
% mkdir -p /Users/satoshi.tanaka/var/log

# ~/.my.cnf を準備, user名やportなどは適当に変更すること
% cat ~/.my.cnf
[mysqld_multi]
mysqld     = /opt/local/lib/mysql5/bin/mysqld_safe
mysqladmin = /opt/local/lib/mysql5/bin/mysqladmin
user       = root

[mysqld1]
server-id  = 1
socket     = /tmp/mysql1.sock
port       = 13306
pid-file   = /tmp/mysql1.pid
datadir    = /Users/satoshi.tanaka/var/mysql1
language   = /opt/local/share/mysql5/mysql/english
user       = satoshi.tanaka
log        = /Users/satoshi.tanaka/var/log/mysqld1.log
log-error  = /Users/satoshi.tanaka/var/log/mysqld1.error.log

[mysqld2]
server-id  = 2
socket     = /tmp/mysql2.sock
port       = 13307
pid-file   = /tmp/mysql2.pid
datadir    = /Users/satoshi.tanaka/var/mysql2
language   = /opt/local/share/mysql5/mysql/english
user       = satoshi.tanaka
log        = /Users/satoshi.tanaka/var/log/mysqld2.log
log-error  = /Users/satoshi.tanaka/var/log/mysqld2.error.log

# datadirの準備
% mysql_install_db5 --datadir=./var/mysql1/
% mysql_install_db5 --datadir=./var/mysql2/

# 起動して確認
% /opt/local/bin/mysqld_multi5 start --log=/tmp/mysqld_multi.log
% /opt/local/bin/mysqld_multi5 report --log=/tmp/mysqld_multi.log
Reporting MySQL servers
MySQL server from group: mysqld1 is running
MySQL server from group: mysqld2 is running
% mysql5 -S /tmp/mysql2.sock
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.1.63-log Source distribution

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

Jython - port of Python.
JRuby - port of Ruby.
Rhino - port of ECMAScript.
Clojure - Lisp dialect.
Groovy - Scripting language for the JVM.
Scala - object-oriented, functional language for the JVM.

brew install rhino

% java -jar /usr/local/Cellar/rhino/1.7R3/libexec/js.jar -e "print('hello world!');"
java -jar /usr/local/Cellar/rhino/1.7R3/libexec/js.jar -e "print('hello worldjava -jar /usr/local/Cellar/rhino/1.7R3/libexec/js.jar');"
hello worldjava -jar /usr/local/Cellar/rhino/1.7R3/libexec/js.jar
%

% java -jar /usr/local/Cellar/rhino/1.7R3/libexec/js.jar
Rhino 1.7 release 3 2011 05 09
js> print('hello world!');
hello world!
js>

% brew install node

% git clone git://github.com/creationix/nvm.git ~/.nvm
% nvm install v0.6.12
% nvm alias default v0.6.12
% source ~/.nvm/nvm.sh
% curl http://npmjs.org/install.sh | sh
% npm install nodeunit
% ln -s $HOME/.npm/nodeunit/0.7.4/package/bin/nodeunit $HOME/bin/nodeunit