lirantal

# Android SDK setup

## Install Java

```bash
sudo apt-get update
sudo dpkg --add-architecture i386
sudo apt-get install libbz2-1.0:i386
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1
sudo apt-get install openjdk-8-jdk openjdk-8-jre

brock

# This is just a cheat sheet:

# On production
sudo -u postgres pg_dump database | gzip -9 > database.sql.gz

# On local
scp -C production:~/database.sql.gz
dropdb database && createdb database
gunzip < database.sql.gz | psql database

cies

;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.

(defun dotspacemacs/layers ()
  "Configuration Layers declaration."
  (setq-default
   ;; List of additional paths where to look for configuration layers.
   ;; Paths must have a trailing slash (i.e. `~/.mycontribs/')
   dotspacemacs-configuration-layer-path '()

526avijitgupta

emacs --daemon to run in the background. emacsclient.emacs24 <filename/dirname> to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

• Undo - C-/
• Redo - C-?
• Change case: 1. Camel Case : M-c 2. Upper Case : M-u

3. Lower Case : M-l

Decoherence

module Main where

import           Control.Monad.Trans
import           Control.Monad.Trans.Either
import           Safe


data Sensor = Temp
            | Fuel
            | Pressure

Decoherence

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE DeriveGeneric #-}
module Main where

import Database.PostgreSQL.Simple
import Data.Aeson hiding (json)
import Data.Monoid
import Data.Text (pack)
import GHC.Generics

Decoherence

import           Control.Applicative
import           Control.Monad
import           Options
import           Safe


{-
  Command-line arguments:
    -m: biggest prime less than m   (required)
    -l: show full list              (optional)

Decoherence

{-# LANGUAGE DeriveGeneric   #-}
{-# LANGUAGE TemplateHaskell #-}
import           Control.Lens
import           Data.Aeson
import qualified Data.ByteString.Lazy.Char8 as C
import           GHC.Generics

-- For production code, use Text instead of String
data Person = Person { _personName :: String
                     , _personAge  :: Int

bcremer

systemd for Administrators

Chronological list of the "systemd for Administrators" series published on 0pointer.net/blog:

• Part I: Verifying Bootup
• Part II: Which Service Owns Which Processes?
• Part III: How Do I Convert A SysV Init Script Into A systemd Service File?
• Part IV: Killing Services
• Part V: The Three Levels of "Off"
• Part VI: Changing Roots

Decoherence

-- | Main entry point to the application.
module Main where

import Control.Monad.Reader
import Control.Monad.Writer

{- 
    The ReaderT transformer is used to retrieve a read-only value from some environment. 
    The WriterT transformer will log the result of each retrieval. 
    Running the two transformers together yields a log of each step along with the actual results.