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require 'active_support/all'

def single_hash(keys, value)
  splitted = keys.split(":")
  hash = { splitted.last => value }

  splitted[0..-2].reverse.each do |key|
    hash = { key => hash}
  end
  hash

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Introduction to Ruby

Things about Ruby

• Everything in Ruby is an Object (except blocks) and everything has methods.
• In Ruby, {} are generally interchangeable with the keywords do and end.
• There is no method overloading, the last one declared is invoked, because it overrides the others.
• Instance variables (attributes) are trapped inside the instance and need to be published throught attribute accessors methods, for instance.

The Ruby style guide

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Installation guide for Ruby stack in Ubuntu (Work In Progress)

Open your terminal and copy and paste the following commands:


# This will install: git, ruby and zsh:

sudo apt-get update
sudo apt-get install build-essential git zlib1g-dev openssl libopenssl-ruby1.9.1 libssl-dev libruby1.9.1 libreadline-dev libcurl4-gnutls-dev librtmp-dev curl -y
sudo apt-get install zsh -y

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iTerm2

http://iterm2.com/

Oh my ZSH

https://github.com/robbyrussell/oh-my-zsh

HomeBrew

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Problem topic: postgres
-> Error: psql: could not connect to server: No such file or directory
-> The solution which worked for me:
a pid file was blocking postgres from starting up. To fix it:
rm /usr/local/var/postgres/postmaster.pid
and then all is well.

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=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

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How to install Ruby 1.9.3-p392 on Mac OSX 10.8+

RVM:

rvm get stable && rvm reload

Firstly, the OpenSSL comes with your OSX 10.8+ is outdated, you need to get latest version

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• Send data from local to server

scp -P [port_number] [files_to_send] [user]@[ip_server]:[folder_in_server]

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• Export only data

mysqldump -u [username] -p --no-create-db --no-create-info [database_name]+ [table_name]* > [filename]+.sql 

• Export only structure

mysqldump -u [username] -p --no-data [database_name]+ [table_name]* > [filename]+.sql 

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- Descomprimir .tgz

```
$ tar -xvzf archivo.tgz
```

- Descomprimir .tar

```
$ tar -xvf archivo.tar