Dulani

# push
push <- function(x, values) (assign(as.character(substitute(x)), c(x, values), parent.frame()))

# pop
pop <- function(x) (assign(as.character(substitute(x)), x[-length(x)], parent.frame()))

# example
z <- 1:3
push(z, 4)
z

Dulani

#!/bin/bash
# --- Version history ---
#   mrn: sleep for $freq instead of 3 seconds (forked)
#   0.4: added variable to store file path, and $2 for base file name
#        added variable to store desired reporting interval
#   0.3: added $1 to send in process ID at run time.
#   0.2: switched to $SECONDS for the loop. works.
#   0.1: didn't work well at all.
# --- Version history ---

Dulani

Set up the notebook so that it automatically hides the code chunks in the .nb.html:

output: 
  html_notebook:
    code_folding: hide

Print more table output rows for a particular chunk: {r, rows.print = 20}

Dulani

Docker Favorites

Build an image with a dockerfile: docker build - < Dockerfile

Add a name to the image (after building it):

docker tag <image ID> <image name>:latest

e.g. docker tag dbfee88ee9fd windowsservercore:latest

Dulani

#Reference: https://www.thomas-krenn.com/en/wiki/Headless_Mode_for_Virtual_Machines_of_VirtualBox
#List available VMs:
VBoxManage list vms

#Run a particular VM in headless mode: 
$ VBoxHeadless -startvm ubuntu-server

#Assuming port forwarding has been set up from 22 to 2222 (in the GUI): 
ssh -p 2222 <username>@localhost

Dulani

advancement grant <targets> everything
advancement grant <targets> from <advancement>
advancement grant <targets> only <advancement>
advancement grant <targets> only <advancement> <criterion>
advancement grant <targets> through <advancement>
advancement grant <targets> until <advancement>
advancement revoke <targets> everything
advancement revoke <targets> from <advancement>
advancement revoke <targets> only <advancement>
advancement revoke <targets> only <advancement> <criterion>

Dulani

image: php:5.6

stages:
  - test
  - build
  - deploy

test:
  stage: test
  script: echo "Running tests"

Dulani

// ==UserScript==
// @name       Strip autocomplete attributes
// @namespace  david0
// @version    0.1
// @description  This plugin gives the control about your passwords back to your browser and allows the browser to store every password.
// @include      http://*
// @include      https://*
// @copyright  2014, David
// ==/UserScript==
 

Dulani

#Setting Up AWS CodeCommit (Mac)

For all possibilities, amazon has guides here: http://docs.aws.amazon.com/codecommit/latest/userguide/setting-up.html

We chose to use HTTPS here

If git asks you to manually enter username or password it is incorrectly configured!

Similar to RSA, the AWS CLI credential-helper should be using your keys to create and send a dynamic password that updates every 15 minutes.

Dulani

#!/usr/bin/env python
from Foundation import NSUserNotification
from Foundation import NSUserNotificationCenter
from Foundation import NSUserNotificationDefaultSoundName
from optparse import OptionParser



def main():
    parser = OptionParser(usage='%prog -t TITLE -m MESSAGE')