pwelch

# Turn DD-WRT wireless radio on for business hours only. Verify wireless interface for your router model.
# Place in WebUI > Administration > Management > Cron 

0 18 * * 1,2,3,4,5 root wl -i eth1 radio off
0 6 * * 1,2,3,4,5 root wl -i eth1 radio on

pwelch

#!/usr/bin/env ruby

require 'tk'
require 'tkextlib/tile'
require 'tkextlib/bwidget'
require 'cups'

$dirname = TkVariable.new

root = TkRoot.new {title "Print Folder"}

pwelch

# This requires you install the command line tools from Amazon, and setup your Amazon credentials appropriately.
# - http://aws.amazon.com/developertools/351/

for region (us-east-1 us-west-1 us-west-2) ec2-import-keypair $USER -f ~/.ssh/id_rsa.pub --region $region

pwelch

background do
   set_omniauth()
   click_link_or_button 'Sign up with Facebook'
end

pwelch

#!/usr/bin/env ruby
##
# Creates a PNG file from the 1st page of each PDF in a given directory
require 'mkmf'

stop = Proc.new { |msg| puts "\nFailure#{msg}"; exit 1 }

ARGV[0].nil? ? stop.call(': Provide directory of PDF files as first argument') : Dir.chdir(ARGV[0])

%w{gs convert}.each do |cmd|

pwelch

# Testing tasks
namespace :test do
  desc 'Runs ruby or jq syntax check on roles'
  task :roles do
    puts '===== Running ruby syntax check on roles'

    Dir.foreach('roles/') do |file|
      if file =~ /.rb$/
        sh "ruby -c roles/#{file}"
      elsif file =~ /.json$/

pwelch

Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

pwelch

• http://muratbuffalo.blogspot.com/2015/12/my-distributed-systems-seminars-reading.html
• http://christophermeiklejohn.com/distributed/systems/2013/07/12/readings-in-distributed-systems.html
• http://michaelrbernste.in/2013/11/06/distributed-systems-archaeology-works-cited.html
• http://dancres.org/reading_list.html
• http://rxin.github.io/db-readings/
• http://research.microsoft.com/en-us/um/people/lamport/pubs/pubs.html
• http://www.eecs.berkeley.edu/GradAffairs/CS/Prelims/db.html
• http://pdos.csail.mit.edu/dsrg/papers/
• http://scalingsystems.com/2011/09/07/reading-list-for-distributed-systems/
• http://courses.engr.illinois.edu/cs525/sp2011/sched.htm

pwelch

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "Stmt1416260474000",
      "Effect": "Allow",
      "Action": [
        "s3:CreateBucket",
        "s3:GetLifecycleConfiguration",
        "s3:ListBucket",

pwelch

#cloud-config
package_upgrade: true
packages:
  - zsh
  - tmux
  - nmap
  - curl
  - wget
  - git
  - htop