huangzhichong

API workthough

1. Open a browser

   # start an instance of firefox with selenium-webdriver
   driver = Selenium::WebDriver.for :firefox
   # :chrome -> chrome
   # :ie     -> iexplore
   

• Go to a specified URL

pjdietz

VirtualBox Host-Only Static IP

My typical setup for a development box in VirtualBox uses two NICs. The first uses NAT to allow the box to communicate with the outside world through my host computer’s network connection. (NAT is the default, so shouldn't require any setup.) The second is a "host-only" connection that allows my host and guest to interact.

To create a host-only connection in VirtualBox, start by opening the preferences in VirtualBox. Go to the "Network" tab, and addd a Host-only Network. Modify the host-only network, and disable DHCP. Make a note of the IP address. (Feel free to set the IP address as well, if you like.)

Next, assign this host-only adapter to the virtual machine. Select the VM and press "Settings". Go to the "Network" tab, and select "Adpater 2". Enable the adapter, set it to a "Host-only Adapter", and select the adpater you created above.

Temporary

wdullaer

#!/bin/sh
# Cleanup docker files: untagged containers and images.
#
# Use `docker-cleanup -n` for a dry run to see what would be deleted.

untagged_containers() {
    # Print containers using untagged images: $1 is used with awk's print: 0=line, 1=column 1.
    # NOTE: "[0-9a-f]{12}" does not work with GNU Awk 3.1.7 (RHEL6).
    # Ref: https://github.com/blueyed/dotfiles/commit/a14f0b4b#commitcomment-6736470
    docker ps -a | tail -n +2 | awk '$2 ~ "^[0-9a-f]+$" {print $'$1'}'

rioshen

public class Backtrack {
    public static List<List<Object>> backtrack(int[] A) {
        // Set up a list of list to hold all possible solutions
        List<List<Object>> result = new LinkedList<List<Object>>();
        if (A == null || A.length == 0) {
            return result;
        }

        // As we need to recursively generate every solution,
        // a variable is needed to store single solution.

kevin-smets

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

bzamecnik

Anaconda Python script running as systemd service

This way a Python daemon can be installed on Rasbian, Ubuntu or similar systems using systemd.

Installing:

sudo cp hello.service /lib/systemd/system/hello.service
sudo systemctl daemon-reload
sudo systemctl enable hello.service

nicor88

#!/usr/bin/env bash
set -x -e

JUPYTER_PASSWORD=${1:-"myJupyterPassword"}
NOTEBOOK_DIR=${2:-"s3://myS3Bucket/notebooks/"}

# home backup
if [ ! -d /mnt/home_backup ]; then
  sudo mkdir /mnt/home_backup
  sudo cp -a /home/* /mnt/home_backup

tuannvm

Kubernetes cheatsheet

• Kubernetes cheatsheet
  • Getting Started
  • Sample yaml
  • Workflow
  • Physical components
    • Master
    • Node
• Everything is an object - persistent entities

ivmm

#!/bin/bash
# init_centos shell  
#安装说明参见 https://sadsu.com/?p=266
#----------------------------------------------------------#
#                  Variables&Functions                     #
#----------------------------------------------------------#
red='\033[0;31m'
green='\033[0;32m'
yellow='\033[0;33m'
plain='\033[0m'

devops-school

provider "aws" {
  region     = "eu-west-1"
  access_key = ""
  secret_key = ""
}
resource "aws_instance" "example" {
  ami           = "${var.ami-mine}"
  instance_type = "t2.micro"
  key_name      = "rajesh"