mitio

#!/usr/bin/env ruby

status = `passenger-status -v --show=xml`

pid_to_show = ARGV.first
processes = {}

def extract(tag_name, xml)
  if xml =~ /<#{tag_name}>(.*?)<\/#{tag_name}>/s
    $1.to_s.strip

mitio

require 'time'

task_ends_at = '2014-01-22 17:30:00 +200'

late_commits_unix_timestamp = Time.parse(task_ends_at).utc.to_i

def commit_timestamp_of(commit_line)
  commit_line.split(/\s+/).first.to_i
end

mitio

#!/bin/sh

RUNNING_AS=`whoami`

export HOME=`getent passwd $RUNNING_AS | cut -d: -f6`
source ~/.bashrc
exec "$@"

mitio

#!/bin/sh

grep -E '^Listen ' /etc/apache2/ports.conf | sed 's/:/./' | sed 's/Listen //' | \
  ruby -e 'conns = []; while conn = gets; conns << conn.strip; end; system "netstat -an|grep tcp|grep -v LISTEN|grep -E \"\\b#{conns.join "\\b|\\b"}\\b\"";' | awk '{ print $5 }' | ruby -e 'conns = Hash.new(0); while conn = gets; parts = conn.strip.split(":"); ip = parts[0]; port = parts[-1]; conns[ip] += 1; end; conns.sort_by { |ip, count| -count }.each { |ip, count| puts "IP: #{ip.ljust(25)} connections: #{count.to_s.ljust(8)}" } ;nil'

mitio

# Windows-1251 encoded as UTF-8
def decode_broken_cyrillic(s)
  offset = 848

  utf8_chars = s.chars.map do |char|
    if char.ord > 127
      [char.ord + offset].pack('U')
    else
      char
    end

mitio

# With Ruby 2.1.0-preview1 this benchmark outputs:
#
#                             user     system      total        real
# calling_with_param       1.450000   0.150000   1.600000 (  1.874802)
# calling_with_proc_new    0.920000   0.060000   0.980000 (  1.004593)
# calling_with_yield       0.220000   0.000000   0.220000 (  0.233624)
# returning_with_param     1.300000   0.080000   1.380000 (  1.414610)
# returning_with_proc_new  0.830000   0.040000   0.870000 (  0.880629)

require 'benchmark'

mitio

FFFFFFFFFFFF...FF....F

Failures:

  1) TodoList filters tasks by status
     Failure/Error: todo_list.filter(Criteria.status :done).map(&:description).should =~ [
     NoMethodError:
       undefined method `status' for nil:NilClass
     # ./hw02_adelina.rb:82:in `status'
     # /Users/dimitardimitrov/Projects/web/ruby-homework/tasks/02/spec.rb:19:in `block (2 levels) in <top (required)>'

mitio

config defaultToCurrentScreen true
config nudgePercentOf screenSize
config resizePercentOf screenSize

# Abstract positions
alias full        move   screenOriginX;screenOriginY screenSizeX;screenSizeY
alias lefthalf    move   screenOriginX;screenOriginY screenSizeX/2;screenSizeY
alias righthalf   move   screenOriginX+screenSizeX/2;screenOriginY screenSizeX/2;screenSizeY
alias topleft     corner top-left resize:screenSizeX/2;screenSizeY/2
alias topright    corner top-right resize:screenSizeX/2;screenSizeY/2

mitio

Run a command on multiple servers

A small script to allow running the same command on multiple servers. The commands are ran in series so that if you see an error somewhere, you can quickly bail out with Ctrl + C and avoid further damage to your servers.

Usage

Run as:

run-on dbserver.mysite.com frontend.mysite.com 'date; df -h /tmp'

mitio

def homogenize(items)
  arr_with_integers = []
  arr_with_rational = []
  arr_with_float = []
  arr_with_strings = []
  arr_with_symbols = []
  arr_with_hash = []
  arr_with_array = []
  arr_nil_class = []
  arr_with_classes = []