rueycheng

GNU Make Cheatsheet

Based on https://www.gnu.org/software/make/manual/html_node/Quick-Reference.html

Directives

Directive	Description
define variable define variable = define variable := define variable ::= define variable += define variable ?= endef	Define multi-line variables.
undefine variable	Undefining variables.

101v

# View registry settings
Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0

# Change registry settings
# Reverse mouse wheel scroll FlipFlopWheel = 1 
# Normal mouse wheel scroll FlipFlopWheel = 0 
Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 1 }

# Restore default scroll direction
# Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 1 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 0 }

jbeda

# Have origin be your fork, upstream is upstream.
$ git remote -v
origin	[email protected]:jbeda/kubernetes.git (fetch)
origin	[email protected]:jbeda/kubernetes.git (push)
upstream	[email protected]:kubernetes/kubernetes.git (fetch)
upstream	[email protected]:kubernetes/kubernetes.git (push)

# Make some changes to a bunch of files in a multi commit PR

# Find the commit you want to tweak, copy the hash

dhh

# Original Rails controller and action
class EmployeesController < ApplicationController
  def create
    @employee = Employee.new(employee_params)
    
    if @employee.save
      redirect_to @employee, notice: "Employee #{@employee.name} created"
    else
      render :new
    end

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

steveklabnik

require 'test_helper'

describe "foo" do
  include SupportsCount
end

railwaycat

#!/usr/bin/perl

# Emacs starter for Emacs mac port

# Thanks to Aquamacs Project and David Reitter

my $args = "";
my $tmpfiles = "";

for my $f (@ARGV) {

gruber

-- See article here: http://daringfireball.net/2007/07/simple_inbox_sweeper

-- The following should be one long line:
set _description to "All unflagged, read messages in each IMAP account 
    inbox will be moved to the “Archive” mailbox corresponding to that  
    account. This action is not undoable."

tell application "Mail"
	display alert "Archive read messages from IMAP inboxes?" buttons ¬
		{"Cancel", "Archive"} cancel button 1 message _description

igrigorik

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"