P7h

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;

import com.google.common.io.ByteSource;
import com.google.common.io.Resources;

/**
 * Reads a properties file and print all the key value pairs to the console.

P7h

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

P7h

==========================================          ==========================================
             TMUX COMMAND                                        WINDOW (TAB)
==========================================          ==========================================

List    tmux ls                                     List         ^b w
New          -s <session>                           Create       ^b c
Attach       att -t <session>                       Rename       ^b , <name>
Rename       rename-session -t <old> <new>          Last         ^b l               (lower-L)
Kill         kill-session -t <session>              Close        ^b &

P7h

### This script downloads and sets up the following binaries.
## Java: 8u91
## Scala: 2.11.8
## SBT: 0.13.11
## Spark: 1.6.1

sudo usermod -a -G sudo hduser

## Install the essential packages.
sudo apt-get install ssh zip p7zip p7zip-full multitail htop screen tmux -y # subversion git python-pip

P7h

#####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####

### Shell script to download Oracle JDK / JRE / Java binaries from Oracle website using terminal / command / shell prompt using wget / curl.
### You can download all the binaries one-shot by just providing one BASE_URL.
### Script might be useful if you need Oracle JDK on Amazon EC2 env.
### Script is updated for every JDK release.

### Features:-
# 1. Resumes a broken / interrupted [previous] download, if any.
# 2. Renames the file to a proper name with including platform info.

P7h

#####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####

### Shell script to download Oracle JDK / JRE / Java binaries from Oracle website using terminal / command / shell prompt using wget.
### You can download all the binaries one-shot by just giving the BASE_URL.
### Script might be useful if you need Oracle JDK on Amazon EC2 env.
### Script is updated for every JDK release.

### Features:-
# 1. Resumes a broken / interrupted [previous] download, if any.
# 2. Renames the file to a proper name with including platform info.

P7h

import java.time.LocalDateTime

import scala.annotation.tailrec

object Stopwatch {

  def main(args: Array[String]): Unit = {
    val from = LocalDateTime.of(2001, 9, 11, 8, 46, 40, 250)
    val to = LocalDateTime.now()

P7h

sudo apt install screen htop ncdu multitail
conda install jupyterlab pyspark
conda install -c conda-forge jupyter_contrib_nbextensions altair vega_datasets vega3
pip install https://dist.apache.org/repos/dist/dev/incubator/toree/0.2.0/snapshots/dev1/toree-pip/toree-0.2.0.dev1.tar.gz
jupyter toree install --spark_home=~/spark-2.3.0 --user
jupyter toree install --interpreters=Scala,PySpark,SQL --user
jupyter kernelspec list

P7h

<?xml version="1.0" encoding="utf-8"?>
<key name="Software">
	<key name="ConEmu">
		<key name=".Vanilla" modified="2017-12-11 20:35:09" build="171205">
			<value name="StartType" type="hex" data="02"/>
			<value name="CmdLine" type="string" data=""/>
			<value name="StartTasksFile" type="string" data=""/>
			<value name="StartTasksName" type="string" data="{Shells::cmd}"/>
			<value name="StartFarFolders" type="hex" data="00"/>
			<value name="StartFarEditors" type="hex" data="00"/>

P7h

sudo find / -type f -name "log4j.properties" -exec sed -i 's/TRACE/ERROR/g' {} +
sudo find / -type f -name "log4j.properties" -exec sed -i 's/DEBUG/ERROR/g' {} +
sudo find / -type f -name "log4j.properties" -exec sed -i 's/INFO/ERROR/g' {} +
sudo find / -type f -name "log4j.properties" -exec sed -i 's/WARN/ERROR/g' {} +