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Questions for Ruby Gems
www.YoYoBrain.com - Accelerators for Memory and Learning Questions for Ruby Gems Category: Basics - (21 questions) How do you check the version of gems on gem --version system Ruby: How do you update gems version gem update --system Ruby: How do you install a particular gem gem install rails (such as rails) How do you search the gem repository gem list -r name directly for gem with a name How do you uninstall a particular version of a gem uninstall name -v#.# gem What type of file would you need to install a .gem file gem directly If you install a gem directly and it needs post postinstall.rb installation code to be run, what is the typical file name 2 ways to make the gem code available in a require xxxx - uses the latest version ruby program require_gem 'xxxx', = x.x.x - to specify the gem version Ruby: How can you find out which version of gem list --remote name the gems are available from remote repository What is a .gem file essentially archives like tar or zip files with metadata describing contents Ruby: What must be created to make your custom gem specification, called own gem gemspecplaced in gemspec.rb and uses object GEM::Specification Ruby: How do you create your own .gem file gem build gemspec.rb RubyGem: code for package is placed within lib ____ directory RubyGem: convention for primary file lib/gem_name.rb RubyGem: file where you define what's in gem_name.gempspec gem, who made it, and version RubyGem: how to build / install from source gem build gem_name.gemspecgem install files ./gemname.gem RubyGem: how to push a created gem to gem push gem_name-0.0.0.gem RubyGems.org RubyGems: how to detect a gem on gem list -r gem_name RubyGems.org RubyGems: convention for adding modules / make a directory inside lib with same name classes to gem as gemlib/gem_name/ . -
Automating Configuration N49(PDF)
Automating Network Configuration Brent Chapman Netomata, Inc. [email protected] www.netomata.com NANOG 49 — 13 June 2010 Copyright © 2010, Netomata, Inc. All Rights Reserved. Introduction Who I am What I'm here to talk about 2 Copyright © 2010, Netomata, Inc. All Rights Reserved. Why automate network configuration? Because automated networks are More reliable Easier to maintain Easier to scale 3 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... Imagine you're managing a moderately complex web site Multiple real and virtual hosts Several "environments" (production, testing, development, etc.) Separate VLAN for each environment 4 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... What networking devices & services need to be managed? Routers Switches Load Balancers Firewalls Real-time status monitoring (i.e., Nagios) Long-term usage monitoring (i.e., MRTG) 5 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... How to add new virtual host to existing load balancer pool? Set up host itself, using Puppet or cfengine or whatever Add host to VLAN defs on switches Add host to ACLs on routers Add host to pool on load balancers Add host to NAT and ACLs on firewalls Add host to real-time monitoring (i.e., Nagios) Add host to usage monitoring (i.e., MRTG) 6 Copyright © 2010, Netomata, Inc. All Rights Reserved. For example... What's the problem with doing all that by hand? You have to remember how to manage all those very different devices (and you probably don't do it very often) It takes a lot of time Every step is a chance to make a mistake You might get distracted, and never finish Over time, these small mistakes add up, leading to inconsistent networks that are unreliable and difficult to troubleshoot 7 Copyright © 2010, Netomata, Inc. -
Cross-Platform Mobile Software Development with React Native Pages and Ap- Pendix Pages 27 + 0
Cross-platform mobile software development with React Native Janne Warén Bachelor’s thesis Degree Programme in ICT 2016 Abstract 9.10.2016 Author Janne Warén Degree programme Business Information Technology Thesis title Number of Cross-platform mobile software development with React Native pages and ap- pendix pages 27 + 0 The purpose of this study was to give an understanding of what React Native is and how it can be used to develop a cross-platform mobile application. The study explains the idea and key features of React Native based on source literature. The key features covered are the Virtual DOM, components, JSX, props and state. I found out that React Native is easy to get started with, and that it’s well-suited for a web programmer. It makes the development process for mobile programming a lot easier com- pared to traditional native approach, it’s easy to see why it has gained popularity fast. However, React Native still a new technology under rapid development, and to fully under- stand what’s happening it would be good to have some knowledge of JavaScript and per- haps React (for the Web) before jumping into React Native. Keywords React Native, Mobile application development, React, JavaScript, API Table of contents 1 Introduction ..................................................................................................................... 1 1.1 Goals and restrictions ............................................................................................. 1 1.2 Definitions and abbreviations ................................................................................ -
Internationalization in Ruby 2.4
Internationalization in Ruby 2.4 http://www.sw.it.aoyama.ac.jp/2016/pub/IUC40-Ruby2.4/ 40th Internationalization and Unicode Conference Santa Clara, California, U.S.A., November 3, 2016 Martin J. DÜRST [email protected] Aoyama Gakuin University © 2016 Martin J. Dürst, Aoyama Gakuin University Abstract Ruby is a purely object-oriented scripting language which is easy to learn for beginners and highly appreciated by experts for its productivity and depth. This presentation discusses the progress of adding internationalization functionality to Ruby for the version 2.4 release expected towards the end of 2016. One focus of the talk will be the currently ongoing implementation of locale-aware case conversion. Since Ruby 1.9, Ruby has a pervasive if somewhat unique framework for character encoding, allowing different applications to choose different internationalization models. In practice, Ruby is most often and most conveniently used with UTF-8. Support for internationalization facilities beyond character encoding has been available via various external libraries. As a result, applications may use conflicting and confusing ways to invoke internationalization functionality. To use case conversion as an example, up to version 2.3, Ruby comes with built-in methods for upcasing and downcasing strings, but these only work on ASCII. Our implementation extends this to the whole Unicode range for version 2.4, and efficiently reuses data already available for case-sensitive matching in regular expressions. We study the interface of internationalization functions/methods in a wide range of programming languages and Ruby libraries. Based on this study, we propose to extend the current built-in Ruby methods, e.g. -
Symbols & Numbers A
ruby_02.book Page 267 Thursday, May 10, 2007 4:12 PM INDEX Symbols & Numbers \ (backslash), in regular expression, for literal characters, 144 %Q for instantiating Strings, 23, \W, in regular expression, for 108–109, 215–216, 219, 239, whitespace, 66 245, 248–250 { } (braces) %w for instantiating Arrays, 47, for blocks, 28 113, 115 for declaring Hash, 42 & (ampersand), for expressing blocks {x}, in regular expression, 79 and Procs, 105–106 - method (Hash), 93 ! (exclamation point), for destructive ||= operator, 77–78, 127 methods, 20, 22–23 | (pipe) character, in regular || (or) operator, 17 expression, 56 # character + method of Integers and Strings, 3–4 for comments, 14 + (plus sign), in regular for instance method, 234 expression, 62 #{} for wrapping expression to be = (equal sign), for assigning value to interpolated, 23 variable, 9 #! (shebang), 47 == operator, for equality testing, 14 $ (dollar sign), for bash prompt, 19 =begin rdoc, 22 * (asterisk), in irb prompt, 8 =end, 22 ** (asterisk doubled), for “to the <=> method (Comparable), 145, power of,” 72 150–151 /\d+/ in regular expression, for digits <% and %> tags, 211 only, 79 <%= tag, for printing expression, 214 :needs_data Symbol key, 116 99bottles.rb script, 20–25 :nitems Symbol key, 116 :unless0th Symbol key, 116 ? (question mark) A in predicate method names, 22 actionpack, warnings related to, 226 in regular expression, for optional Active Record, Rails dependence expressions, 144 on, 227 @ sign, for instance variable, 21–22 Agile Web Development with Rails @@ sign, for class -
Benjamin M. Ward (703) 336 9706 [email protected]
Benjamin M. Ward www.benmward.com (703) 336 9706 [email protected] SECURITY CLEARANCE TOP SECRET / SCI with Polygraph Jun 2017 - Present PROFESSIONAL EXPERIENCE Software Engineer | Bit Systems, Sterling, VA Jul 2016 - Present Work on a team developing a powerful software platform to facilitate mission data ingestion, persistence, and real-time analysis with a modern web application based client Tasks range from full-stack application development, database design, file system infrastructure enforcement, peer code review, technical documentation, and configuration of integrated systems in classified environments Technologies: Grails, Groovy, Java, AngularJS, Puppet, PostgreSQL, HTML, CSS, Shell Scripting, and others Computer Law and Ethics TA | George Mason University, Fairfax, VA Jan 2016 - Jul 2016 Received the 2016 Distinguished Undergraduate Teaching Assistant Award from the GMU Computer Science Dept. Assisted students with legal research for landmark computer/software related cases; Grading responsibilities Internship (Software Engineer) | Bit Systems, Sterling, VA May 2015 - Aug 2015 Developed a caching system to optimize the delivery of large and bursty data for an enterprise Java application Technologies: Java, PostgreSQL, Spring Framework, Camel, ActiveMQ, JMS, Javascript, Ant, XML (JAXB) EDUCATION George Mason University | Fairfax, VA Aug 2012 - May 2016 B.S. in Applied Computer Science with a concentration in Software Engineering Cum Laude GPA 3.52 TECHNICAL SKILLS Languages Java, Groovy, Javascript, PostgreSQL, Shell -
Zentrale Verwaltung Mit Facter, Puppet Und Augeas
System-Management-Trio Zentrale Verwaltung mit facter, puppet und augeas Verwaltung mit facter, puppet und augeas © SpeedPartner GmbH Seite: 1 / 34 GUUG Frühjahrsfachgespräch, 01.03.2012 Über den Vortrag Aufbau / Ziele: ● Einführung / Überblick ● Begriffsklärung ● Aufbau / Arbeitsweise von Manifests ● Templates, Klassen, Typen, Module ● Facter: Umgebungsparameter ermitteln ● Augeas: Konfigurationen bearbeiten ● Client-Server-Betrieb ● Arbeit mit mehreren Umgebungen ● Links / Hilfen Verwaltung mit facter, puppet und augeas © SpeedPartner GmbH Seite: 2 / 34 GUUG Frühjahrsfachgespräch, 01.03.2012 Über mich ● Stefan Neufeind ● Mit-Geschäftsführer der SpeedPartner GmbH aus Neuss ein Internet-Service-Provider (ISP) ● Individuelle TYPO3-Entwicklungen ● Hosting, Housing, Managed Services ● Domains / Domain-Services ● IPv6, DNSSEC, ... ● Aktive Mitarbeit im Community-Umfeld (PHP/PEAR, TYPO3, Linux) ● Freier Autor für z.B. t3n, iX, Internet World, ... Verwaltung mit facter, puppet und augeas © SpeedPartner GmbH Seite: 3 / 34 GUUG Frühjahrsfachgespräch, 01.03.2012 Aufgabenstellung Alltägliche Administrationsaufgaben für ein (Server-)System Basisinstallation Fehler bei Ausführung von Zugänge „Standard-Aufgaben“? Backup Monitoring Fehlersuche / Einrichtung / Fehlerkorrektur Konzeptfehler? Konfiguration Netzwerk Fehler durch die Systemstatistiken „Sonderlösungen“? Architektur Virtuell? Individuelle Anpassungen Aufgaben RAID? Verwaltung mit facter, puppet und augeas © SpeedPartner GmbH Seite: 4 / 34 GUUG Frühjahrsfachgespräch, 01.03.2012 Aufgabenstellung -
Debugging at Full Speed
Debugging at Full Speed Chris Seaton Michael L. Van De Vanter Michael Haupt Oracle Labs Oracle Labs Oracle Labs University of Manchester michael.van.de.vanter [email protected] [email protected] @oracle.com ABSTRACT Ruby; D.3.4 [Programming Languages]: Processors| Debugging support for highly optimized execution environ- run-time environments, interpreters ments is notoriously difficult to implement. The Truffle/- Graal platform for implementing dynamic languages offers General Terms an opportunity to resolve the apparent trade-off between Design, Performance, Languages debugging and high performance. Truffle/Graal-implemented languages are expressed as ab- Keywords stract syntax tree (AST) interpreters. They enjoy competi- tive performance through platform support for type special- Truffle, deoptimization, virtual machines ization, partial evaluation, and dynamic optimization/deop- timization. A prototype debugger for Ruby, implemented 1. INTRODUCTION on this platform, demonstrates that basic debugging services Although debugging and code optimization are both es- can be implemented with modest effort and without signifi- sential to software development, their underlying technolo- cant impact on program performance. Prototyped function- gies typically conflict. Deploying them together usually de- ality includes breakpoints, both simple and conditional, at mands compromise in one or more of the following areas: lines and at local variable assignments. The debugger interacts with running programs by insert- • Performance: Static compilers -
Shaunak Vairagare Shaunakv1
[email protected] Shaunak Vairagare shaunakv1 GIS Web Developer 832-603-9023 1000 Bonieta Harrold Dr #12106 Charleston SC 29414 Innovative software engineer offering eight plus years of experience in Web development and GIS involving full software development lifecycle – from concept through delivery of next- generation applications and customizable solutions. Expert in advanced development methodologies tools and processes. Strong OOP and Design Patterns skills. Deep understanding of OOAD and Agile software development. Creative problem solver and experience in designing software work-flows for complex Geo- spatial applications on web, desktop and mobile platforms. Technical Skills Front End HTML 5, CSS 3, JavaScript, Angular, D3 GIS Servers GeoServer, ArcGIS Server Front End Tools Yeoman, Grunt, Bower Map API OpenLayers, Leaflet, TileMill, Google Maps, BingMaps Web Development Node.js, Ruby on Rails, Spring ESRI ArcGIS Rest, Image Services DevOps Capistrano, Puppet, AWS Stack, Heroku OGC WMS, WFS, GeoJSON, GML, KML, GeoRSS Database MongoDB, MySQL, PostgreSQL, SQL Server GIS Tools ArcGIS, FME, GDAL, LibLAS, Java Topology Suite Servers Apache2, Phusion Passenger, Tomcat GIS Data LiDAR, GeoTIFF, LAS, ShapeFile, GDF Mobile Web PhoneGap , jQuery Mobile, Sencha Touch Carto Databases PostgreSQL/PostGIS , SQL Server Spatial Mobile Native iOS, RubyMotion Data Formats Tele Atlas, NavTeq, Lead Dog, Map My India Languages Ruby, Node.js, Python, Java, ObjectiveC Process & Tools JIRA, Jenkins, Bamboo Work Experience (8+ years) -
Specialising Dynamic Techniques for Implementing the Ruby Programming Language
SPECIALISING DYNAMIC TECHNIQUES FOR IMPLEMENTING THE RUBY PROGRAMMING LANGUAGE A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy in the Faculty of Engineering and Physical Sciences 2015 By Chris Seaton School of Computer Science This published copy of the thesis contains a couple of minor typographical corrections from the version deposited in the University of Manchester Library. [email protected] chrisseaton.com/phd 2 Contents List of Listings7 List of Tables9 List of Figures 11 Abstract 15 Declaration 17 Copyright 19 Acknowledgements 21 1 Introduction 23 1.1 Dynamic Programming Languages.................. 23 1.2 Idiomatic Ruby............................ 25 1.3 Research Questions.......................... 27 1.4 Implementation Work......................... 27 1.5 Contributions............................. 28 1.6 Publications.............................. 29 1.7 Thesis Structure............................ 31 2 Characteristics of Dynamic Languages 35 2.1 Ruby.................................. 35 2.2 Ruby on Rails............................. 36 2.3 Case Study: Idiomatic Ruby..................... 37 2.4 Summary............................... 49 3 3 Implementation of Dynamic Languages 51 3.1 Foundational Techniques....................... 51 3.2 Applied Techniques.......................... 59 3.3 Implementations of Ruby....................... 65 3.4 Parallelism and Concurrency..................... 72 3.5 Summary............................... 73 4 Evaluation Methodology 75 4.1 Evaluation Philosophy -
Pipenightdreams Osgcal-Doc Mumudvb Mpg123-Alsa Tbb
pipenightdreams osgcal-doc mumudvb mpg123-alsa tbb-examples libgammu4-dbg gcc-4.1-doc snort-rules-default davical cutmp3 libevolution5.0-cil aspell-am python-gobject-doc openoffice.org-l10n-mn libc6-xen xserver-xorg trophy-data t38modem pioneers-console libnb-platform10-java libgtkglext1-ruby libboost-wave1.39-dev drgenius bfbtester libchromexvmcpro1 isdnutils-xtools ubuntuone-client openoffice.org2-math openoffice.org-l10n-lt lsb-cxx-ia32 kdeartwork-emoticons-kde4 wmpuzzle trafshow python-plplot lx-gdb link-monitor-applet libscm-dev liblog-agent-logger-perl libccrtp-doc libclass-throwable-perl kde-i18n-csb jack-jconv hamradio-menus coinor-libvol-doc msx-emulator bitbake nabi language-pack-gnome-zh libpaperg popularity-contest xracer-tools xfont-nexus opendrim-lmp-baseserver libvorbisfile-ruby liblinebreak-doc libgfcui-2.0-0c2a-dbg libblacs-mpi-dev dict-freedict-spa-eng blender-ogrexml aspell-da x11-apps openoffice.org-l10n-lv openoffice.org-l10n-nl pnmtopng libodbcinstq1 libhsqldb-java-doc libmono-addins-gui0.2-cil sg3-utils linux-backports-modules-alsa-2.6.31-19-generic yorick-yeti-gsl python-pymssql plasma-widget-cpuload mcpp gpsim-lcd cl-csv libhtml-clean-perl asterisk-dbg apt-dater-dbg libgnome-mag1-dev language-pack-gnome-yo python-crypto svn-autoreleasedeb sugar-terminal-activity mii-diag maria-doc libplexus-component-api-java-doc libhugs-hgl-bundled libchipcard-libgwenhywfar47-plugins libghc6-random-dev freefem3d ezmlm cakephp-scripts aspell-ar ara-byte not+sparc openoffice.org-l10n-nn linux-backports-modules-karmic-generic-pae -
Intro to Ruby
Intro to Ruby Aaron Bartell [email protected] Copyright 2014 Aaron Bartell Ruby… a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. Matz desired a language which he himself enjoyed using, by minimizing programmer work and possible confusion - enter Ruby. - Est 1995 by Yukihiro "Matz" Matsumoto - Mass acceptance 2006 - Very active and well organized community - October 2013, on IBM i with PowerRuby Features: - variable declarations are unnecessary - variables are dynamically and strongly typed - syntax is simple and consistent - everything is an object - classes, methods, inheritance, etc. - NO SEMI COLONS!!! ruby-lang.org – Home website ruby-doc.org - Formal documentation codecademy.com - Learn Ruby in the browser for free amzn.to/1apcrse - Metaprogramming Ruby: Program Like the Ruby Pros Where can I use Ruby? Web apps with Rails - rubyonrails.org iOS with RubyMotion - rubymotion.com Android with Ruboto - ruboto.org Desktop (Mac, Linux, Windows) with Shoes - shoesrb.com ShoesRB.com irb (Interactive Ruby) is an interactive programming environment for Ruby that allows you to quickly test various coding ideas. ● Included with Ruby distribution. ● Symbolic link in /QOpenSys/usr/bin exists for the irb binary ● Great for learning Ruby through quick tests vs. editing files, saving, and invoking. ● irb is the foundation for the rails console. ● nil in screenshot is the reality that every Ruby method (i.e. puts) returns a value. ruby-doc.org/stdlib-2.0/libdoc/irb/rdoc/IRB.html - Formal documentation tryruby.org – Ruby code in the browser without having to install anything.