prayagupa

chef chef-apply chef-client chef-shell chef-solo chefstyle chef-zero

root@y0319t10971:~# chef-apply --version Chef: 12.13.37

Intallation

prayagupa

create a OS managed service using systemd

systemd(all lowercase, not systemD :) ) is an init system in Linux distros to bootstrap the user space and manage all processes subsequently. The alternatives are

1. UNIX System V OS/ BSD OS init systems,
2. upstart, 2006, an event-based replacement for the traditional init daemon upstart. The recent version of ubuntu uses systemd, as far as I remember previous versions of ubuntu use upstart.
3. runit, 2004
4. launchd in MacOS world.

prayagupa

var http = require('http'),
    fileSystem = require('fs'),
    path = require('path')
    util = require('util');

http.createServer(function(request, response) {
    var filePath = 'path_to_file.mp3';
    var stat = fileSystem.statSync(filePath);

    response.writeHead(200, {

prayagupa

The driver detected a controller error on \Device\Ide\IdePort0.

The 1E Shopping Agent service failed to start due to the following error: The service did not respond to the start or control request in a timely fashion.

prayagupa

Here is an example in Javascript based on a package I'm working on for Atom:

var format = '{%n  "commit": "%H",%n  "abbreviated_commit": "%h",%n  "tree": "%T",%n  "abbreviated_tree": "%t",%n  "parent": "%P",%n  "abbreviated_parent": "%p",%n  "refs": "%D",%n  "encoding": "%e",%n  "subject": "%s",%n  "sanitized_subject_line": "%f",%n  "body": "%b",%n  "commit_notes": "%N",%n  "verification_flag": "%G?",%n  "signer": "%GS",%n  "signer_key": "%GK",%n  "author": {%n    "name": "%aN",%n    "email": "%aE",%n    "date": "%aD"%n  },%n  "commiter": {%n    "name": "%cN",%n    "email": "%cE",%n    "date": "%cD"%n  }%n},';

var commits = [];

new BufferedProcess({
    command: 'git',
 args: [

prayagupa

// http://quant-econ.net/jl/getting_started.html

// http://docs.julialang.org/en/release-0.4/manual/getting-started/

wget https://s3.amazonaws.com/julialang/bin/osx/x64/0.4/julia-0.4.5-osx10.7+.dmg

alias juliaConsole='/Applications/Julia-0.4.5.app/Contents/MacOS/Julia'

prayagupa

wget https://s3.amazonaws.com/julialang/bin/osx/x64/0.4/julia-0.4.5-osx10.7+.dmg

alias juliaConsole='/Applications/Julia-0.4.5.app/Contents/MacOS/Julia'

prayagupa

$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.11.4
BuildVersion:	15E65

required
-------------

http://www.leptonica.org/download.html

prayagupa

Using core.async for Producer-consumer Systems

# Set up input file
repeat 10000 echo "." >> input

# Run inline
time lein run inline < input > output

# Run async

prayagupa

import akka.actor._
import com.eventstream.PackageArrivedEvent
import com.eventstream.publisher.PackageArrivedPublisher
import com.eventstream.subscriber.PackageArrivedSubscriber

object EventStreamApplication extends App {

  implicit val system = ActorSystem("event-stream")