eegrok

class Blee
  def self.classmeth
    puts 'calling classmeth'
  end
  def instmeth
    puts 'calling instmeth'
  end
end

Blee.singleton_class.class_eval do

eegrok

module ModuleWithSelf
  def self.===(obj)
    obj === "blah"
  end
end

module ModuleNoSelf
  def ===(obj)
    obj === "blah"
  end

eegrok

klass = Class.new

# a random, anonymous class name
puts klass
MyName = klass
OtherName = klass
# now the anonymous class is named MyName
puts klass

eegrok

from: http://macw.us/sek9nV 
(for more information on creating launch daemons / agents, go to http://j.mp/uYtpsJ )

create a file in ~/Library/LaunchAgents
named something like:
com.yourdomain.smb_server.domain_announce.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">

eegrok

#create file containing something like below -- in /etc/apache2/sites/localweb.conf
# (you may need to create the /etc/apache2/sites directory)
<VirtualHost 127.0.0.1:80>
    ServerName www.localweb.com
    ServerAlias *.localweb.com
    DocumentRoot "/Users/kem/src/localweb"
    <Directory "/Users/kem/src/localweb">
        Options Indexes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny

eegrok

you can pipe stuff through ssh -- e.g., concatenate your SSH key on another host.
cat ~/.ssh/id_dsa.pub | ssh me@remotebox "cat >> ~/.ssh/authorized_keys"

lsof - http://danielmiessler.com/study/lsof/

disown (detach from process so when close your terminal it doesn't get killed -- like doing nohup in advance)
xargs / parallel
sudo !! -- repeat last command with sudo prepended
!$ -- last argument to last command
!* -- all arguments to last command

eegrok

git config --global user.name “My Name” (put in your name)
git config --global user.email “email@domain.com” (put in your email address)
git config --global branch.autosetuprebase always
git config --global core.excludesfile ~/.gitignore

eegrok

<?xml version="1.0"?>
<root>
<item>
  <name>Kems custom keybindings</name>
  <list>
    <item>
      <name>Fix broken keyboard</name>
      <list>
        <item>
          <name>Remap broken keys</name>

eegrok

make sure the following lines are set in /etc/sshd_config (or /etc/ssh/sshd_config on ubuntu)
(they all exist already, but are commented, some may have a value of yes)

PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM no

then restart the ssh server (uncheck / recheck 'Remote Login' in the 'System Preferences' -> 'Sharing' panel)

eegrok

//this method should mostly set up a java app to act as a jconsole server, with static ports so you can configure forwarding through a firewall or over a vpn
  public static void setupJConsole(MBeanServer mbs, String hostname, Integer port1, Integer port2) {
    // from http://download.oracle.com/javase/6/docs/technotes/guides/management/agent.html#gdfvv
    // note you need to set the following startup parameters:
    // -Dcom.sun.management.jmxremote.authenticate=true
    // -Dcom.sun.management.jmxremote.ssl=false
    // and this one, if you don't want the rmi server to tell people to connect to the default ip (as is the case if using a vpn ip)
    // -Djava.rmi.server.hostname=vpnhostip
    // Ensure cryptographically strong random number generator used
    // to choose the object number - see java.rmi.server.ObjID