nicokosi

### BRANCHES
git checkout -b <branch name> # Create a branch
git branch -r # List remote branches
git checkout <branch name> # Switch to branch (deprecated)
git switch <branch name> # Switch to branch
git checkout <commit ID> # Locally retrieve an old revision
git fetch # retrieve remote changes (commits) without changing local repo ; can be used to fix sync issue
git branch -D branchName # delete local branch
git branch -m <newname> # rename current local branch
git push origin --delete <branchName> # delete remote branch

nicokosi

-- http://learnyouahaskell.com

-- Starting out

-----------------------------------------------------------------------------------
-- baby's first functions http://learnyouahaskell.com/starting-out#babys-first-functions
doubleMe x = x + x 
doubleUs x y = doubleMe x + doubleMe y
doubleSmallNumber x = if x > 100  
                        then x  

nicokosi

Programming languages

(* Emacs tips :
  open file: ctr-c ctr-f
  copy: M-w, paste: ctr+y
  save file: ctr+x ctr+s,
  next/previous buffer: ctr+x left/right:
  start REPL: ctr+c ctr+s sml, stop REPL: ctr+c ctr+d 
  stop command interpreter: ctr-g 
  split window vertically: C-x 2

nicokosi

( Introduction to Racket:

	Racket:
		- functional focus
		- with imperative features
		- dynamically-types
		- minimalist syntax
		- advanced features: modules, macros, etc...

	(note: we will not use pattern matching, but it exists)

nicokosi

Part 3

Introduction to Ruby {

	Our focus {
		Pure Object-Oriented
			no primitives (even numbers)

		Class-based
			Every object has a class that determines behavior (like Java)

nicokosi

// array
var myArray = [1, 2, 3];

// set
var mySet = { "foo": true, "bar": true, "baz": true };
set.foo // true
set.notExists // false


var object = { id: 126878, name: "ZALTRAP 25 mg/ml sol diluer p perf", sid: "vidal://product/126878", title: "ZALTRAP 25 mg/ml sol diluer p perf" };

nicokosi

Docker nightclazz découverte

05/02/2015 par Mario Loriedo & Vincent Demeester

C'est une intro, prochaine session dans 1 mois

Intro

• outil pour partager env de dev et env de prod (sysadmin) #devops: "build, ship and run" via conteneurs => + rapide, automatisation

nicokosi

# CPU  & mem usage per process (sampling)
top # list processes
top -h # list threads
top -c # show full command line
htop

# CPU usage per CPU:
mpstat -P ALL 1

# Processes (uptime, hierarchy, CPU usage, etc...):

nicokosi

import System.CPUTime

fibo :: Int -> Int
fibo n
  |  n <= 1 = n
  | otherwise = fibo(n - 1) + fibo(n - 2)


getCPUTimeDouble :: IO Double
getCPUTimeDouble = do t <- System.CPUTime.getCPUTime; return ((fromInteger t) * 1e-12)

nicokosi

Fake Telco

Let’s say that a ake telco needs to answer various questions such as:

• contracts that are not used by any clients

• etc…​

Setup graph: