burningsky250

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1

burningsky250

import collections

def dict_merge(dct, merge_dct):
    """ Recursive dict merge. Inspired by :meth:``dict.update()``, instead of
    updating only top-level keys, dict_merge recurses down into dicts nested
    to an arbitrary depth, updating keys. The ``merge_dct`` is merged into
    ``dct``.

    :param dct: dict onto which the merge is executed
    :param merge_dct: dct merged into dct

burningsky250

#!/usr/bin/env python3
# coding=utf-8
import json

from ansible.executor.task_queue_manager import TaskQueueManager
from ansible.inventory import Inventory
from ansible.inventory.group import Group
from ansible.inventory.host import Host
from ansible.parsing.dataloader import DataLoader
from ansible.playbook.play import Play

burningsky250

#! /usr/bin/env bash

# Install any build dependencies needed for curl
sudo apt-get build-dep curl

# Get build requirements
# Some of these are used for the Python bindings
# this package also installs
sudo apt-get install g++ make binutils autoconf automake autotools-dev libtool pkg-config \
  zlib1g-dev libcunit1-dev libssl-dev libxml2-dev libev-dev libevent-dev libjansson-dev \

burningsky250

Installing SSHPASS

SSHPass is a tiny utility, which allows you to provide the ssh password without using the prompt. This will very helpful for scripting. SSHPass is not good to use in multi-user environment. If you use SSHPass on your development machine, it don't do anything evil.

Installing on Ubuntu

apt-get install sshpass

Installing on OS X

burningsky250

# file: /etc/unbound/google_scholar
local-data: "scholar.google.cn AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.google.com.hk AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.google.com.sg AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.google.com.tw AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.google.com.uk AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.google.com AAAA 2607:f8b0:4005:80a::200e"
local-data: "scholar.l.google.com AAAA 2607:f8b0:4005:80a::200e"

burningsky250

Installing gcc 4.8 and Linuxbrew on CentOS 6

The GCC distributed with CentOS 6 is 4.4.7, which is pretty outdated. I'd like to use gcc 4.8+. Also, when trying to install Linuxbrew you run into a dependency loop where Homebrew's gcc depends on zlib, which depends on gcc. Here's how I solved the problem.

Note: Requires sudo privileges.

Resources:

• http://superuser.com/a/676337/88393: Forum response on using CERN's open Scientific Linux distribution of RHEL's developer toolset.
• http://linux.web.cern.ch/linux/devtoolset/: CERN's developer toolset installation instructions.

burningsky250

#!/usr/bin/env python

"""Simple HTTP Server With Upload.

This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.

"""

burningsky250

#!/usr/bin/perl
######################################################################
# killcx :
#
# Close a TCP connection under Linux.
#
# (c) Jerome Bruandet - <floodmon@spamcleaner.org>
#
# version 1.0.3 - 18-May-2011
#

burningsky250

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!