Ananthram

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

Ananthram

1. wget https://releases.hashicorp.com/vagrant/1.9.1/vagrant_1.9.1_x86_64.deb
2. sudo dpkg -i vagrant_1.9.1_x86_64.deb 
3. vagrant version

Ananthram

Linux Shell Conditinal cheat sheet:

    "A ; B" Run A and then B, regardless of success of A
    "A && B" Run B if A succeeded
    "A || B" Run B if A failed
    "A &" Run A in background.

Ananthram

---
#http://docs.ansible.com/ansible/latest/intro_configuration.html#ask-pass

- hosts: nodes
  gather_facts: no
  become: yes

  vars:
    oracle_java_version: 8
    oracle_java_home: "/usr/lib/jvm/java-{{ oracle_java_version }}-oracle"

Ananthram

def ipToInt(ip):
  a = ip.split('.')
  
  b = map(int, a)
  

  
  return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3]