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#connect to redis database (place at config/initializers/redis.rb)
$redis = Redis.new(host: 'localhost', port: 6379, db: 1)

#read hash values from json file:
ru_json = File.read("ru-RU.json")
en_json = File.read("en.json")
cn_json = File.read("zh-CN.json")
ar_json = File.read("ar-EG.json")

#Set hash value in db:

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n=10
(1..n).inject(:*) || 1
## 1 ######### 2 #### 3
#1. this is a enum object
#2. Do an operation (*) with accumulated result and next element - 1..3: res = 1 * 2 * 3
#3. this is a foolprof - if an enum object is nil, result alway be the 1

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An incoming mail processing microframework in Ruby: https://github.com/titanous/mailman

A Really Ruby Mail Library:

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#!/usr/bin/env ruby

require 'colorize'
require 'rubygems'
require 'bundler/setup'
require 'mailman'

Mailman.config.maildir = 'Mail'
Mailman.config.poll_interval = 5
Mailman.config.logger = Logger.new('log/mailman.log')

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1. close viewer
2. in registry key \Software\JavaSoft\Prefs\com\glavsoft\viewer\connections/History\0 delete value ui...
3. run viewer again

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select your vm:

xe vm-list

detect id of dom of its vm:

xe vm-param-list uuid=8e2dd6ac-4883-0e6e-5cce-afbf214fa916 | grep dom-id

read vnc port by that dom_id:

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####bash color example:

echo -e "\e[0;31mМонтирую каталоги с диска u120 как:\e[0m"

####bash colors:

Original info and image: http://zipizap.wordpress.com/2011/09/28/quick-bash-colors/

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unicorn -c config/unicorn.rb

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tar: tar -zcvf archive_name.tar.gz dir_name

untar: tar -zxvf file.tar.gz

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example, if you want to change gitignore, but only in your local repo, do next:

git update-index --assume-unchanged .gitignore