luislee818

Introduction

Vocabulary

Examples are decalred using the it method
Assertions are called Expectations
should and should_not are called Modifiers
Matchers are the operators in the assertions (==, >, be_true, etc.)

Install RSpec

pkuczynski

MIT License

Copyright (c) 2014 Piotr Kuczynski

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWAR

soheilhy

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

janikvonrotz

SQL languages

DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database.

DML is short name of Data Manipulation Language which deals with data manipulation, and includes most common SQL statements such SELECT, INSERT, UPDATE, DELETE etc, and it is used to store, modify, retrieve, delete and update data in database.

DCL is short name of Data Control Language which includes commands such as GRANT, and mostly concerned with rights, permissions and other controls of the database system.

Datatypes

Text types

bench

#!/bin/bash
#
# Use the following script using sudo to install multiple golang installations on your debian 
# update-alternatives creates, removes, maintains and displays information about the symbolic links comprising the alternatives system
# Usage : sudo ./full_golang_install.sh
#

if [[ $(id -u) -ne 0 ]] ; then echo "This script should be run using sudo or as the root user" ; exit 1 ; fi

## Configuration and init

pieterlange

(?<loglevel>[A-Z])%{NUMBER:logcode} %{TIME} %{NUMBER:threadid} (?<file_source>%{WORD}\.%{WORD}):(?<file_line>%{NUMBER})\] (?<message>.*)

acobaugh

for key in .git-crypt/keys/default/0/* ; do gpg -k $(echo $(basename $key) | sed -e 's/.gpg//') ; done ;

pydevops

• 0.1. References
• 0.2. Other cheatsheets
• 0.3. Manage multiple gcloud config configurations
  • 0.3.1. Switch gcloud context with gcloud config
• 0.4. Credentials
• 0.5. info
• 0.6. projects
• 0.7. zones & regions
• 0.8. Organization
• 0.9. billing

danisla

#!/bin/bash

function terraform-install() {
  [[ -f ${HOME}/bin/terraform ]] && echo "`${HOME}/bin/terraform version` already installed at ${HOME}/bin/terraform" && return 0
  LATEST_URL=$(curl -sL https://releases.hashicorp.com/terraform/index.json | jq -r '.versions[].builds[].url' | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n | egrep -v 'rc|beta' | egrep 'linux.*amd64' |tail -1)
  curl ${LATEST_URL} > /tmp/terraform.zip
  mkdir -p ${HOME}/bin
  (cd ${HOME}/bin && unzip /tmp/terraform.zip)
  if [[ -z $(grep 'export PATH=${HOME}/bin:${PATH}' ~/.bashrc) ]]; then
  	echo 'export PATH=${HOME}/bin:${PATH}' >> ~/.bashrc

ekreutz

Ansible variable precedence

Source: http://docs.ansible.com/ansible/latest/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable

From least to most important

• command line values (for example, -u my_user, these are not variables)
• role defaults (defined in role/defaults/main.yml)
• inventory file or script group vars
• inventory group_vars/all