kisai

#Sample 1
puts "#{$@.first}: #{$!.message} (#{$!.class})", $@.drop(1).map{|s| "\t#{s}"}

#Sample 2
puts "#{e.backtrace.first}: #{e.message} (#{e.class})", e.backtrace.drop(1).map{|s| "\t#{s}"}

kisai

Class Dog
   has_many :tags
   belongs_to :person
end

Class Person
  has_many :dogs
end

d = Dog.new

kisai

#!/bin/bash
export JAVA_OPTS="-Xmx2048m -XX:ReservedCodeCacheSize=256m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -XX:NewRatio=3 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSClassUnloadingEnabled -Dfile.encoding=UTF-8 -XX:+TieredCompilation -XX:TieredStopAtLevel=1"
export JRUBY_OPTS="--1.9 -J-noverify -J-XX:+TieredCompilation -J-XX:TieredStopAtLevel=1"
torquebox run -b 0.0.0.0

kisai

(define (memoize f)
  (define ht (make-hash))
  (define (f-mem . args)
    (if (hash-has-key? ht args)
        (hash-ref ht args)
        (begin
          (hash-set! ht args (apply f args))
          (hash-ref ht args))))
  f-mem)

kisai

(use 'clojure.java.io) 
(let [pred (every-pred
             #(.isDirectory %)
             #(not (.startsWith (.getName %) "."))
             #(not (some (partial = (.getName %)) ["Exclude Name 0" "Exclude Name 1" "Exclude Name 2"])))
        dest "/Path/to/Destination"
        src "/Path/to/Source" ]
    (doseq [f (filter pred (-> src file .listFiles seq))]
      (.renameTo f (file dest (.getName f))) ))