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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.

alexhudici

//*******************************************************************
// Edited with https://www.compilejava.net/
// Static member example
//*******************************************************************

import java.lang.Math; // headers MUST be above the first class

// one class needs to have a main() method
public class HelloWorld
{

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### Use this space to try out ideas and free code ###
#!/usr/bin/python

import json
import os
import time
import sys
import shutil

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package main

import (
	"encoding/json"
	"reflect"
	"fmt"
)

type GenericObj struct {
	Overwrite interface{} `json:"overwrite"`

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fun

A Pen by alex on CodePen.

License.

alexhudici

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

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# Creating keys
#
cp -rv /usr/share/doc/openvpn/examples/easy-rsa/2.0/ /config/easy-rsa2

# Edit vars
vi /config/easy-rsa2/vars

cd /config/easy-rsa2/
source ./vars

alexhudici

vyos@vyos:~$ show version 
Version:      VyOS 1.0.4
Description:  VyOS 1.0.4 (hydrogen)
Copyright:    2014 SO3 Group
Built by:     maintainers@vyos.net
Built on:     Mon Jun 16 15:58:49 UTC 2014
Build ID:     1406161558-32e5690
System type:  x86 64-bit
Boot via:     livecd
Hypervisor:   VMware

alexhudici

// https://play.golang.org/p/juDjWm9VC44
package main

import "fmt"

type T struct {
	Id   int
	Name string
	Flurb []string
}