shoan

#!/bin/bash
for v in `vagrant global-status |grep virtualbox|grep running|awk '{print $1}'`; 
do 
  vagrant halt $v;
done;

shoan

#!/usr/bin/env python
# Adapted from Mark Mandel's implementation
# https://github.com/ansible/ansible/blob/devel/plugins/inventory/vagrant.py
import argparse
import json
import paramiko
import subprocess
import sys

shoan

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

shoan

#!/C/xampp/php/php
<?php
#!/usr/bin/env php
/**
 * Git pre-commit hook to run php lint.
 *
 *   Git hooks on Windows: Ensure that the path to PHP is added to the %PATH% variable, and run `git commit` via the Bash shell.
 *
 * @copyright 2012-04-30 N.D.Freear.
 * @license MIT

shoan

SetEnvIf REMOTE_ADDR "(.+)" CLIENTIP=$1
SetEnvIf X-Forwarded-For "^([0-9.]+)" CLIENTIP=$1
LogFormat "%{CLIENTIP}e %D %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" trueip_combined

shoan

#gnutar
git --no-pager diff --name-only HEAD~1.. |tar jcvf ~/temp/file.tbz2 -T - --null

#bsdtar
git --no-pager diff --name-only HEAD~2.. |tar jcvf ~/temp/file.tbz2 -T -

shoan

time awk '{!a[$2]++}END{for(i in a) if ( a[i] >1000 ) print a[i],i }' access_log

shoan

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

shoan

# Here a few bash one-liners that helped me analyze / fight a weak DOS attack against debuggable.com. Mostly for future reference.
# The attacker was opening lots of tcp connections without sending data, I believe it's called a SYN flood, see: http://tools.ietf.org/html/rfc4987#section-3.2

# Step 0: Check what is going on at port 80
$ netstat -tan | grep ':80 ' | awk '{print $6}' | sort | uniq -c

# Step 1: Increase the number of available fds
$ ulimit -n 32000

# Step 2: Restart your webserver, for me: