schacon

$ git branch -r --merged | 
  grep origin | 
  grep -v '>' | 
  grep -v master | 
  xargs -L1 | 
  awk '{split($0,a,"/"); print a[2]}' | 
  xargs git push origin --delete

Mithrandir0x

// Source: https://groups.google.com/forum/#!topic/angular/hVrkvaHGOfc
// jsFiddle: http://jsfiddle.net/pkozlowski_opensource/PxdSP/14/
// author: Pawel Kozlowski

var myApp = angular.module('myApp', []);

//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
    this.sayHello = function() {
        return "Hello, World!"

scottjacobsen

SSH agent forwarding is great. It allows you to ssh from one server to
another all the while using the ssh-agent running on your local
workstation. The benefit is you don't need to generate ssh key pairs
on the servers you are connecting to in order to hop around.

When you ssh to a remote machine the remote machine talks to your
local ssh-agent through the socket referenced by the SSH_AUTH_SOCK
environment variable.

So you the remote server you can do something like: 

irvingpop

# replaces this file /opt/vagrant/embedded/gems/gems/vagrant-1.7.4/plugins/providers/virtualbox/action/sane_defaults.rb
# NOTE: if using a different Vagrant version, adjust the version field accordingly
# NOTE2: only the sections with the IRVING comment have been changed from the default

require "log4r"

module VagrantPlugins
  module ProviderVirtualBox
    module Action
      class SaneDefaults

bcardiff

# sample of a macro that flood the method calls with `#try`
# as a POC it does not support methods with arguments
macro mtry(expr)
  {% if expr.is_a?(Call) %}
    mtry({{expr.receiver}}).try(&.{{expr.name}})
  {% else %}
    {{expr}}
  {% end %}
end

askn

Types of index scans

Indexes

Sequential Scan:

• Read every row in the table
• No reading of index. Reading from indexes is also expensive.

ipbastola

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

rufo

" requires vim 8 for timer support

function! UpdatePowerSaving(timerId)
  if executable('pmset')
    call system("pmset -g batt | head -1 | grep 'Battery'")
    if !v:shell_error
      " on battery
      let g:ale_lint_delay=10000
    else
      " power adapter

nrocco

First download alpine-make-vm-image from https://github.com/alpinelinux/alpine-make-vm-image

wget https://raw.githubusercontent.com/alpinelinux/alpine-make-vm-image/v0.4.0/alpine-make-vm-image \
    && echo '5fb3270e0d665e51b908e1755b40e9c9156917c0  alpine-make-vm-image' | sha1sum -c \
    || exit 1
mv alpine-make-vm-image /usr/local/bin/
chmod +x /usr/local/bin/alpine-make-vm-image

Create a new alpine qcow2 image