zouzias

#!/usr/bin/env ruby

require 'nokogiri'
require './xml_parser.rb'

file="dblp.xml"

Xml::Parser.new(Nokogiri::XML::Reader(open(file))) do
  inside_element 'article' do
    for_element 'author' do puts "Author: #{inner_xml}" end

zouzias

# Recipe for scala-2.10.0-RC5
 
require 'formula'
 
 
class ScalaCompletion < Formula
  homepage 'http://www.scala-lang.org/'
  url 'https://raw.github.com/scala/scala-dist/27bc0c25145a83691e3678c7dda602e765e13413/completion.d/2.9.1/scala'
  version '2.9.1'
  sha1 'e2fd99fe31a9fb687a2deaf049265c605692c997'

zouzias

#!/bin/bash

# Check md5 from all files in a dir. It assumes that for each file "filename.txt" there exists a "filename.txt.md5" corresponding file

FILES=`ls *`
for f in $FILES
do
        # echo "Processing $f"
        MD5=`md5 $f`
        TRUE_MD5=`cat $f.md5`

zouzias

# 1) Copy namefile.csv into HDFS
hadoop fs -put /path/on/localsystem /path/to/hdfs
    
# Start Hive shell . Just type hive
hive

# in your shell
# 2) Create table and show it.
  
create table example1(name String, address String, price int) row format delimited fields terminated by ',' ESCAPED BY '\\' stored as textfile;

zouzias

#Delete local tags.
git tag -l | xargs git tag -d
#Fetch remote tags.
git fetch
#Delete remote tags.
git tag -l | xargs -n 1 git push --delete origin
#Delete local tasg.
git tag -l | xargs git tag -d

zouzias

1 ) Install nagios on Ubuntu using the following guide.

https://help.ubuntu.com/lts/serverguide/nagios.html

2) Install the Jmeter and Tomcat Plugin from nagios exchange.


http://exchange.nagios.org/directory/Plugins/Java-Applications-and-Servers/Apache-Tomcat/check_tomcat-2Epl/details

zouzias

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

zouzias

# Add the following to your ~/.bashrc or ~/.profile file

alias ga='git add '
alias gb='git branch '
alias gc='git commit'
alias gd='git diff'
alias go='git checkout '
alias gk='gitk --all&'
alias gx='gitx --all'

zouzias

Type the following command

`find . -name '*.java' | xargs wc -l`

for java projects.

Source: http://stackoverflow.com/questions/10661636/how-to-count-lines-in-a-netbeans-project

zouzias

#######################
# Install Elasticsearch
#######################
wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb http://packages.elastic.co/elasticsearch/1.7/debian stable main" | sudo tee -a /etc/apt/sources.list.d/elasticsearch-1.7.list
sudo apt-get update && sudo apt-get install -y elasticsearch
sudo update-rc.d elasticsearch defaults 95 10