pvdb

#!/usr/bin/env sh

#
# install GNU grep (`/usr/local/bin/ggrep`)...
#
#     brew tap homebrew/dupes; brew install grep
#
# usage - ensure `${PROJECTS_HOME}` is set...
#
#     find ${PROJECTS_HOME}/seedy/content -name '*.md' | ./validate_external_urls.sh > seedy_external_urls.tsv

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#
# This first version should work on Mac OS X and Linux, but it spawns a process
#

# the number of TCP connections owned by the process.
def Process.tcp_count() `lsof -l -n -P -p #{Process.pid} -a -i tcp | egrep -v '^COMMAND' | wc -l`.chomp.to_i ; end

pvdb

#!/usr/bin/env ruby

require 'pp'

def ruby_repl processor = nil
  unless (processor && Proc === processor) || block_given?
    warn "Please invoke `ruby_repl` with a block or a proc..."
  else
    in_pry = Kernel.const_defined?("Pry::ColorPrinter")
    cmd_count = 0 # for use in the command prompt

pvdb

#!/usr/bin/env ruby
# A quick and dirty implementation of an HTTP proxy server in Ruby
# because I did not want to install anything.
# 
# Copyright (C) 2009-2014 Torsten Becker <[email protected]>
# 
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,

pvdb

#!/usr/bin/env ruby

#
# This script can be used to patch the following script on an Amazon Linux AMI:
#
#   /etc/update-motd.d/70-available-updates
#
# which is run by cron on a daily basis to add package update info to the MOTD:
#
#   19 package(s) needed for security, out of 160 available

pvdb

# as a String
HOME = ENV['HOME'] || File.expand_path("~#{Etc.getlogin}")

# as a Pathname
HOME = Pathname.new(ENV['HOME'] || File.expand_path("~#{Etc.getlogin}"))

pvdb

#!/usr/bin/env ruby
# Remove all gems EXCEPT defaults :)

`gem list -d`.split(/\n\n^(?=\w)/).each do |data|
  match = data.match(/(?<name>([^\s]+)) \((?<versions>.*)\)/)
  name = match[:name]
  versions = match[:versions].split(', ')

  if match = data.match(/^.*\(([\d\.]*),? ?default\): .*$/)
    next if match[1].empty? # it's the only version if this match is empty

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#
# This first version should work on Mac OS X and Linux, but it spawns a process
#
#     http://stackoverflow.com/questions/7220896/
#     https://github.com/rdp/os/blob/master/lib/os.rb#L127
#     http://www.ruby-doc.org/core-2.0/Process.html
#
# A better - but more complicated - way to achieve the same is documented here:
#
#     https://build.betterup.com/tracking-a-processs-memory-usage-in-ruby/

pvdb

#!/usr/bin/ruby
require 'rubygems'
installed_gems = Gem::Dependency.new '', Gem::Requirement.default
missing = []
# mind the short-hand, looping over installed gem specs
specs = Gem.source_index.search installed_gems
specs.each do |spec|
  gem = Gem::Dependency.new spec.name, spec.version
  # looping over gem dependencies
  specs = Gem.source_index.search gem

pvdb

#!/usr/bin/env ruby
#
# NAME
#
#   benchmark.rb -- a multi-dimensional Ruby benchmark script :-)
#
# DESCRIPTION
#
#   a customized Ruby "interpreter" that benchmarks
#   other Ruby scripts... by default, both resident