toshihirock

sudo chpasswd <<EOT
user1:password1
user2:password2
EOT

toshihirock

#!/bin/bash -ex

# lanch
instance_id=`aws ec2 run-instances --image-id ami-hoge --instance-type t2.micro --subnet-id subnet-hoge --security-group-ids sg-hoge --key-name hogekey |jq -r '.Instances[].InstanceId'`
echo "instance_id = ${instance_id}"
sleep 5

# add tag
aws ec2 create-tags --resources ${instance_id} --tags Key=Name,Value=my-host-name

toshihirock

require "selenium-webdriver"

driver = Selenium::WebDriver.for :firefox
driver.navigate.to "http://www.google.co.jp"

element = driver.find_element(:name, 'q')
element.send_keys "selenium"
element.submit

puts driver.title

toshihirock

WAPFILENAME=/swap.img
MEMSIZE=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'`

if [ $MEMSIZE -lt 2097152 ]; then
  SIZE=$(($MEMSIZE * 2))k
elif [ $MEMSIZE -lt 8388608 ]; then
  SIZE=${MEMSIZE}k
elif [ $MEMSIZE -lt 67108864 ]; then
  SIZE=$(($MEMSIZE / 2))k
else

toshihirock

# *.deb or *.sh
find . -type f -name "*.deb" -or -name "*.sh"

# not *.deb or *.sh
find . -type f ! -name "*.deb" -and ! -name "*.sh"

# date format(hoge_20150307 etc...)
find . -type f -name "*`date +%Y%m%d`"

toshihirock

#!/bin/bash

dir=/etc/crontab
echo -e "\n**************${dir}****************"
cat ${dir}
echo "***********************************"

for dir in `ls -d /var/spool/cron/*`
do
  echo -e "\n**************${dir}****************"

toshihirock

# valid
aws cloudformation validate-template --template-body file://MyStack.json

# create stack
aws cloudformation create-stack --template-body file://Mystack.json --stack-name MyFirstStack

# create stack with parameter
aws cloudformation create-stack --template-body file://CloufFormationSample.json --stack-name MyFirstStack --parameters ParameterKey=KeyNameParameter,ParameterValue=HogeKeyPair

# update stack

toshihirock

# dry run
logrotate -d /etc/logrotate.conf

# specific conf
logrotate -d /etc/logrotate.d/httpd

# force execute(Normally logrotate confirms /var/lib/logrotate.status) 
logrotate -f /etc/logrotate.conf

toshihirock

{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Description" : "A simple stack that launches an instance.",
  "Parameters" : {
    "InstanceTypeParameter" : {
      "Type" : "String",
      "Default" : "t2.micro"
    },
    "KeyNameParameter" : {
      "Type" : "String"

toshihirock

module Hoge
  def filter_record
   puts "hoge hello"
  end
 end

module Fuga
  include Hoge

  def filter_record