erincerys

#! /usr/bin/env python

#
# mysql2cassandra.py
#   Dump a MySQL result set to file and then import into a Cassandra column family
# 
# Configuration
#   mysql_params		[host, port, user, password, db]		MySQL conenction parameters
#   mysql_columns		[colname, colname2, ...]				Columns for building MySQL query
#																	The column that will hold values of the row key in the Cassandra column family must be first

kennethzfeng

#!/usr/bin/python
import os

def walk(dir):
    for (root, dirs, files) in os.walk(dir):
        for file in files:
            path = os.path.join(root, file)
            print(repr(path))

if __name__ == "__main__":

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

FUT

1. Install Linux updates, set time zones, followed by GCC and Make

sudo yum -y update
sudo ln -sf /usr/share/zoneinfo/America/Indianapolis \
/etc/localtime
sudo yum -y install gcc make
 

2. Download, Untar and Make Redis 2.8 (check here http://redis.io/download)

bsweger

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

LeCoupa

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

JensRantil

#!/bin/bash

KEYSPACE=$1
DATE=`date +"%Y-%m-%d--%H-%M-%S"`
FOLDER_NAME=${DATE}-daily
S3_BUCKET=s3://YOUR-S3-BUCKET
S3_BUCKET_PATH=cassandra/full/`date +"%Y/%m/%d/%H/%M"`/`cat /etc/hostname`
SNAPSHOTID=`uuidgen --time`
PGP_KEY_RECIPIENT=YOUR-PGP-KEY-RECIPIENT

hartfordfive

#!/usr/bin/env python

import sys, subprocess, json, os
from pprint import pprint

if __name__ == "__main__":

    if 'AWS_SSH_KEY_FILE' in os.environ:
      key_path = os.environ['AWS_SSH_KEY_FILE']
    else:

mandiwise

// Reference: http://stackoverflow.com/questions/4822471/count-number-of-lines-in-a-git-repository

$ git ls-files | xargs wc -l

iangreenleaf

Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.