P7h

Steps to install 7zip on Linux » Ubuntu and Fedora or CentOS / RHEL

Ubuntu

cat /etc/*release
sudo apt-get update -yqq
sudo apt-get install -yqq p7zip-full

P7h

Bash command line Shortcuts

Picked these from here

Command Editing Shortcuts

Command	Note
Ctrl + a	go to the start of the command line
Ctrl + e	go to the end of the command line
Ctrl + k	delete from cursor to the end of the command line

P7h

FROM ubuntu

MAINTAINER Prashanth Babu <Prashanth.Babu@gmail.com>

RUN apt-get update && \
  apt-get install -yqq software-properties-common screen vim && \
  add-apt-repository -y ppa:hvr/ghc && \
  apt-get update && \
  apt-get install -yqq cabal-install-1.24 ghc-8.0.1 && \
  apt-get clean && \

P7h

Keybase proof

I hereby claim:

• I am P7h on github.
• I am p7h (https://keybase.io/p7h) on keybase.
• I have a public key whose fingerprint is A775 C217 20FF C0CE E9D1 E60C EFB3 9713 80D4 F9CD

To claim this, I am signing this object:

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

import java.time._
import java.time.format.DateTimeFormatter

val date = "Sun Apr 03 05:40:58 +0200 2016"

val formatter = DateTimeFormatter.ofPattern("EE MMM dd HH:mm:ss ZZ yyyy")
val parsedDate = LocalDateTime.parse(date, formatter)
  // parsedDate: java.time.LocalDateTime = 2016-04-03T05:40:58
val parsedDateTZ = ZonedDateTime.parse(date, formatter)
  // parsedDateTZ: java.time.ZonedDateTime = 2016-04-03T05:40:58+02:00

P7h

in a nutshell: fit trainingData (train a model), transform testData (predict with model)

• Transformer: DataFrame => DataFrame
• Estimator: DataFrame => Transformer

#Transformers

• Tokenizer: sentence => words
• RegexTokenizer: sentence => words - setPattern
• HashingTF: terms => feature vectors based on frequency - setNumFeatures

P7h

#####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####   #####
#### Command line download script for JDK7 from Oracle website.

#### For JDK8, please check: https://gist.github.com/P7h/9741922
#### Oracle does not release JDK 7 public updates effective April, 2015; for more info: http://www.oracle.com/technetwork/java/javase/documentation/eol-135779.html.

## Last JDK7 version: JDK7u79
BASE_URL_7=http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79

## Previous versions

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

###### CPU Info of a Linux machine.
### Picked from: http://echorand.me/site/notes/articles/python_linux/article.html
from __future__ import print_function
from collections import OrderedDict
import pprint
 
def cpuinfo():
 cpuinfo=OrderedDict()
 procinfo=OrderedDict()
 nprocs = 0