mmasashi

Purpose

Prepare for developing with zsh, git and vim.

Basic

• install zsh and set it as default shell
  • create .zshrc
  • setup git alias

mmasashi

#!/usr/bin/env ruby
# 
# Simple vmstat command with vmstat gem
# ex)
# $ ./ruby-vmstat.rb 1 3
# cpu0  cpu1	cpu2	cpu3	memory	load average 	
# i	i	i	i	free		1m	5m	15m	
# 88.4	96.8	89.0	96.9	1093		0.5	0.9	0.9	2013-01-24 09:09:09 -0800
# 88.4	96.8	89.0	96.9	1093		0.5	0.9	0.9	2013-01-24 09:09:10 -0800
# 88.4	96.8	89.0	96.9	1093		0.5	0.9	0.9	2013-01-24 09:09:11 -0800

mmasashi

#!/usr/bin/ruby

require 'aws-sdk'

EIP_ADDR="XX.XX.XX.XX"
INSTANCE_ID='i-XXXXXXXX'
ec2_info = { 
  :access_key_id => ENV['AWS_KEY_ID'],
  :secret_access_key => ENV['AWS_SECRET_KEY']
}

mmasashi

select column_name from INFORMATION_SCHEMA.COLUMNS where table_name = 'table_name' order by ordinal_position;

mmasashi

r53 = AWS::Route53.new(
  :access_key_id => 'aws-key-id',
  :secret_access_key => 'aws-secret-key')

response = r53.client.list_resource_record_sets(
  :hosted_zone_id => "zone-id",
  :start_record_name => 'xxx.example.com', 
  :start_record_type => 'CNAME'
)
puts response[:resource_record_sets].map{|r| r[:name]}

mmasashi

include Rails.application.routes.url_helpers

mmasashi

• Setup Database

create database [db-name];
revoke all on schema public from public;
create schema [schema-name];
create table [schema-name].[table-name](
  ...
) 

mmasashi

require 'aws-sdk'

ACCESS_KEY_ID=ENV['AWS_KEY_ID']
SECRET_ACCESS_KEY=ENV['AWS_SEC_KEY']

CLUSTER_IDENTIFIER='test-instance'
DB_NAME='testdb'
PORT_NUMBER=5439
MASTER_USERNAME='test_admin'
MASTER_USER_PASSWORD=ENV['MASTER_USER_PASSWORD']

mmasashi

pad = (num, figs, char='0') =>
  prefix = new Array(figs + 1).join(char)
  (prefix + num).slice(-figs)

alert pad(12, 2)      # => 12
alert pad(5, 2)       # => 02
alert pad(12, 4)      # => 0012
alert pad(3, 4, '#')  # => ###3

mmasashi

Mountain Lion setup

Preparation

• account settings
• software update

System Preferences

• TrackPad
  • enable Tap to Click