Eric Haughee ehaughee

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

	# Ways to execute a shell script in Ruby
	# Example Script - Joseph Pecoraro

	cmd = "echo 'hi'" # Sample string that can be used

	# 1. Kernel#` - commonly called backticks - `cmd`
	# This is like many other languages, including bash, PHP, and Perl
	# Synchronous (blocking)
	# Returns the output of the shell command
	# Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

	# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
	module Player
	describe MovieList, "with optional description" do

	it "is pending example, so that you can write ones quickly"

	it "is already working example that we want to suspend from failing temporarily" do
	pending("working on another feature that temporarily breaks this one")

	#!/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
	#

	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns
	Compress 1K bytes with Zippy 3,000 ns
	Send 2K bytes over 1 Gbps network 20,000 ns
	Read 1 MB sequentially from memory 250,000 ns
	Round trip within same datacenter 500,000 ns
	Disk seek 10,000,000 ns

	# Allows for any file to be extracted using: x $1
	x () {
	if [ -f $1 ] ; then
	case $1 in
	*.tar.bz2) tar xjf $1 ;;
	*.tar.gz) tar xzf $1 ;;
	*.bz2) bunzip2 $1 ;;
	*.rar) rar x $1 ;;
	*.gz) gunzip $1 ;;
	*.tar) tar xvf $1 ;;