EvilGrinUK

#!/bin/bash

VG_NAME="vg0"
SNAPSHOT_SIZE="+2G"
BACKUP_LOCATION="/backups"
DAYSTOKEEP=7

for lv in $(lvs --noheadings --nosuffix --aligned --separator , -o lv_name,lv_attr | grep -v ,s | cut -d, -f1)
   do
        LV_SIZE="$(lvs --units m --noheadings --nosuffix --aligned --separator , -o lv_name,lv_size | grep "$lv" | cut -d',' -f2 | cut -d. -f 1)" # LV size in MB

colinvh

Alternative naming schemes for AWS regions

Purpose

The intent is to define terse, standards-supported names for AWS regions.

Schemes

goncalossilva

#!/bin/sh

# sh gifenc.sh input.mp4 output.gif
# Optionally accepts width / height (one or both).

palette="/tmp/palette.png"
filters="fps=15"
if [ -n "$3" ]; then
  if [ -n "$4" ]; then
    filters="$filters,scale=$3:$4"

tuxfight3r

##TCP FLAGS##

Unskilled Attackers Pester Real Security Folks
==============================================
                     TCPDUMP FLAGS
Unskilled =  URG  =  (Not Displayed in Flag Field, Displayed elsewhere) 
Attackers =  ACK  =  (Not Displayed in Flag Field, Displayed elsewhere)
Pester    =  PSH  =  [P] (Push Data)
Real      =  RST  =  [R] (Reset Connection)
Security  =  SYN  =  [S] (Start Connection)

kwilczynski

If you want to check whether a node run_list includes a specific role (upon expansion), then you could use role? method on the Node object:

node.role?('name')

Alternatively, you can see whether either would work for you:

node.roles.include?('name')

node.run_list?('role[name]')

ipedrazas

# knife cheat

## Search Examples

	knife search "name:ip*" 
	knife search "platform:ubuntu*"
	knife search "platform:*" -a macaddress
	knife search "platform:ubuntu*" -a uptime
	knife search "platform:ubuntu*" -a virtualization.system
	knife search "platform:ubuntu*" -a network.default_gateway

csfrancis

# Updated for Ruby 2.3
string_t = None

def get_rstring(addr):
  s = addr.cast(string_t.pointer())
  if s['basic']['flags'] & (1 << 13):
    return s['as']['heap']['ptr'].string()
  else:
    return s['as']['ary'].string()

lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

jwreagor

{
/* Keybindings for emacs emulation.  Compiled by Jacob Rus.
 *
 * This is a pretty good set, especially considering that many emacs bindings
 * such as C-o, C-a, C-e, C-k, C-y, C-v, C-f, C-b, C-p, C-n, C-t, and
 * perhaps a few more, are already built into the system.
 *
 * BEWARE:
 * This file uses the Option key as a meta key.  This has the side-effect
 * of overriding Mac OS keybindings for the option key, which generally

octocat

# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so

# Packages #