lewisd32

#!/bin/bash
# stdin should be integers, one per line.
percentile=$1
tmp="$(tempfile)"
total=$(sort -n | tee "$tmp" | wc -l)
# (n + 99) / 100 with integers is effectively ceil(n/100) with floats
count=$(((total * percentile + 99) / 100))
head -n $count "$tmp" | tail -n 1
rm "$tmp"

martinseener

#!/bin/bash

env x='() { :;}; echo vulnerable' bash -c "echo this is a test" | grep vulnerable > /dev/null 2>&1
if [ $? -eq 1 ]; then
  echo "Not vulnerable. Machine is safe."
  exit 0
else
  echo -n "Vulnerable. Version: "
  /bin/bash --version
  echo "Installing patch."

roachhd

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BrainFuck Programming Tutorial by: Katie

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INTRODUCTION

tamoyal

# Be sure to save your config files. Optional but I do:
sudo cp /etc/postgresql/9.3/main/postgresql.conf ~
sudo cp /etc/postgresql/9.3/main/pg_hba.conf ~

# Package repo (for apt-get)
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" >> /etc/apt/sources.list.d/postgresql.list'

# Also probably optional but I like to update sources and upgrade
sudo apt-get update

getify

function formatValue(x) {
	var ret;

	if (typeof x == "string") {
		return "'" + x.replace(/\n/g,"\\n") + "'";
	}
	if (typeof x == "number" && x === 0 && (1/x === -Infinity)) {
		return "-0";
	}
	if (Array.isArray(x)) {

Wack0

Superfish uses an SDK from Komodia to do SSL MITM. That's probably known by now.

Superfish isn't the only product to use that sdk. there's others too.

Each product that uses the Komodia SDK to MITM, has its OWN CA cert and private
key pair. Seems a lot of people think they all use the superfish cert. That is
NOT the case.

First thing I checked was komodia's own parental control software,
Keep My Family Secure. (mentioned on komodia's own website).

jabley

Writing Post Mortems - John Allspaw

This talk is also known as ‘PostMortem Facilitation: Theory and Practice of "New View" Debriefings’ Background reading for attendees

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

monkut

def valid_date_type(arg_date_str):
    """custom argparse *date* type for user dates values given from the command line"""
    try:
        return datetime.datetime.strptime(arg_date_str, "%Y-%m-%d")
    except ValueError:
        msg = "Given Date ({0}) not valid! Expected format, YYYY-MM-DD!".format(arg_date_str)
        raise argparse.ArgumentTypeError(msg)
        
def valid_datetime_type(arg_datetime_str):
    """custom argparse type for user datetime values given from the command line"""

danieleggert

GPG and git on macOS

Setup

No need for homebrew or anything like that. Works with https://www.git-tower.com and the command line.

1. Install https://gpgtools.org -- I'd suggest to do a customized install and deselect GPGMail.
2. Create or import a key -- see below for https://keybase.io
3. Run gpg --list-secret-keys and look for sec, use the key ID for the next step
4. Configure git to use GPG -- replace the key with the one from gpg --list-secret-keys