Alex Rowley rowleyaj

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Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

Use Dropbox for a git repository in the cloud. I use it for backup purposes.

It's important to use --bare to create a bare repo (without working copy) instead of a normal one, because git will complain about pushing to the working branch otherwise.

References:

When creating a git repository that will be on the server, can I convert it to a bare repository?

Here are a list of headless browsers that I know about:

[HtmlUnit][1] - Java. Custom browser engine. JavaScript support/DOM emulated. Open source.
[Ghost][2] - Python only. WebKit-based. Full JavaScript support. Open source.
[Twill][3] - Python/command line. Custom browser engine. No JavaScript. Open source.
[PhantomJS][4] - Command line/all platforms. WebKit-based. Full JavaScript support. Open source.
[Awesomium][5] - C++/.Net/all platforms. Chromium-based. Full JavaScript support. Commercial/free.
[SimpleBrowser][6] - .Net 4/C#. Custom browser engine. No JavaScript support. Open source.
[ZombieJS][7] - Node.js. Custom browser engine. JavaScript support/emulated DOM. Open source.
[EnvJS][8] - JavaScript via Java/Rhino. Custom browser engine. JavaScript support/emulated DOM. Open source.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

	# 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

	#
	# CORS header support
	#
	# One way to use this is by placing it into a file called "cors_support"
	# under your Nginx configuration directory and placing the following
	# statement inside your location block(s):
	#
	# include cors_support;
	#
	# As of Nginx 1.7.5, add_header supports an "always" parameter which

	# Description:
	# This script receives pages in the formats
	# /usr/bin/curl -d host="$HOSTALIAS$" -d output="$SERVICEOUTPUT$" -d description="$SERVICEDESC$" -d type=service -d notificationtype="$NOTIFICATIONTYPE$ -d state="$SERVICESTATE$" $CONTACTADDRESS1$
	# /usr/bin/curl -d host="$HOSTNAME$" -d output="$HOSTOUTPUT$" -d type=host -d notificationtype="$NOTIFICATIONTYPE$" -d state="$HOSTSTATE$" $CONTACTADDRESS1$
	#
	# Based on a gist by oremj (https://gist.github.com/oremj/3702073)
	#
	# Configuration:
	# HUBOT_NAGIOS_URL - https://<user>:<password>@nagios.example.com/cgi-bin/nagios3
	#

	#!/bin/bash

	# https://gist.github.com/robwierzbowski/5430952/
	# Create and push to a new github repo from the command line.
	# Grabs sensible defaults from the containing folder and `.gitconfig`.
	# Refinements welcome.

	# Gather constant vars
	CURRENTDIR=${PWD##*/}
	GITHUBUSER=$(git config github.user)

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD