Making CLI app in ruby
•
1 like•1,787 views
This document discusses how to build command line interface (CLI) applications in Ruby. It introduces the Thor gem for building CLI apps with single commands and then discusses building interactive shell apps using a read-eval-print loop (REPL) and the GNU Readline library. The document provides examples of CLI apps, why they are useful, and tips for making better CLI apps, and concludes by showcasing a Facebook command line application built with these techniques.
Report
Share
Report
Share
Download to read offline
Recommended
NoSQL for great good [hanoi.rb talk]
NoSQL databases should not be chosen just because a system is slow or to replace RDBMS. The appropriate choice depends on factors like the nature of the data, how the data scales, and whether ACID properties are needed. NoSQL databases are categorized by data model (document, column family, graph, key-value store) which affects querying. Other considerations include scalability based on the CAP theorem and operational factors like the distribution model and whether there is a single point of failure. The best choice depends on the specific requirements and risks losing data if chosen incorrectly.
Ruby, the language of devops
This document discusses why Ruby is a good programming language for operations staff. It notes that operations involves tasks like building servers, packaging, monitoring, and provisioning that can be programmed. While shell scripts and Perl are commonly used today, Ruby has advantages like allowing multiple versions of the same library, being beginner friendly due to tutorials and syntax, and its use of blocks for iteration, cleanup and separating concerns. Ruby also has good tooling for devops tasks like configuration management, logging and packaging that operations staff can benefit from due to the ability to write plugins for these tools.
Ruby an overall approach
Ruby is a dynamic, open source programming language created in 1993 by Yukihiro Matsumoto. It was influenced by Perl, Smalltalk, Python and Lisp. Ruby supports object-oriented, imperative, and functional programming styles. Everything in Ruby is an object and has flexible typing. Ruby also features open classes and duck typing. It gained popularity with the release of the Ruby on Rails framework in 2004.
Code for Startup MVP (Ruby on Rails) Session 1
This document provides an agenda and overview for a workshop on learning to code for startup MVPs using Ruby on Rails. The agenda covers reviewing a previous session, learning Ruby basics like syntax and semantics through practice, and introducing Rails models using ORM and SQL. It also provides instructions for setting up development environments on Windows, Mac, and Linux systems, installing Git for version control, and an overview of concepts covered in the previous session like the web architecture, Git/GitHub, Rails and Ruby, and deploying to Heroku.
Introduction to Ruby on Rails
The presentation gives an overview about the ruby programming language and Rails, the web framework built over it ruby. It does highlight some of the key features of ruby programming language and mentions the key benefits of using Rails framework for web application development.
Web development basics (Part-5)
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
N tier web applications
This document discusses building n-tier web applications using Visual FoxPro. It covers n-tier web architecture, the model-view-controller pattern, interacting with VFP from the web, and using the Prototype JavaScript framework. The presenter then demonstrates rendering HTML from VFP, saving form data, and adding dynamic behavior to web pages using Prototype. Examples of good and bad JavaScript practices are also provided.
CBDW2014 - Down the RabbitMQ hole with ColdFusion
In this talk I will introduce attendees to the basics of messaging queues, their goals and applications from CFML. Messaging enables software applications to connect and scale. Thus, providing applications to connect to each other as components of a larger application, or to user devices and data. Messaging is asynchronous, and can decouple your software concerns with ease. However, messaging is much more than the traditional publish/subscribe patterns but also the ability to create work queues, routing and much more.
Recommended
NoSQL for great good [hanoi.rb talk]
NoSQL databases should not be chosen just because a system is slow or to replace RDBMS. The appropriate choice depends on factors like the nature of the data, how the data scales, and whether ACID properties are needed. NoSQL databases are categorized by data model (document, column family, graph, key-value store) which affects querying. Other considerations include scalability based on the CAP theorem and operational factors like the distribution model and whether there is a single point of failure. The best choice depends on the specific requirements and risks losing data if chosen incorrectly.
Ruby, the language of devops
This document discusses why Ruby is a good programming language for operations staff. It notes that operations involves tasks like building servers, packaging, monitoring, and provisioning that can be programmed. While shell scripts and Perl are commonly used today, Ruby has advantages like allowing multiple versions of the same library, being beginner friendly due to tutorials and syntax, and its use of blocks for iteration, cleanup and separating concerns. Ruby also has good tooling for devops tasks like configuration management, logging and packaging that operations staff can benefit from due to the ability to write plugins for these tools.
Ruby an overall approach
Ruby is a dynamic, open source programming language created in 1993 by Yukihiro Matsumoto. It was influenced by Perl, Smalltalk, Python and Lisp. Ruby supports object-oriented, imperative, and functional programming styles. Everything in Ruby is an object and has flexible typing. Ruby also features open classes and duck typing. It gained popularity with the release of the Ruby on Rails framework in 2004.
Code for Startup MVP (Ruby on Rails) Session 1
This document provides an agenda and overview for a workshop on learning to code for startup MVPs using Ruby on Rails. The agenda covers reviewing a previous session, learning Ruby basics like syntax and semantics through practice, and introducing Rails models using ORM and SQL. It also provides instructions for setting up development environments on Windows, Mac, and Linux systems, installing Git for version control, and an overview of concepts covered in the previous session like the web architecture, Git/GitHub, Rails and Ruby, and deploying to Heroku.
Introduction to Ruby on Rails
The presentation gives an overview about the ruby programming language and Rails, the web framework built over it ruby. It does highlight some of the key features of ruby programming language and mentions the key benefits of using Rails framework for web application development.
Web development basics (Part-5)
We will cover whole of the web development basics comprising of HTML, CSS, JavaScript in this series.
Following are topics useful for any newbie to intermediate who is interested in learning Web Development
N tier web applications
This document discusses building n-tier web applications using Visual FoxPro. It covers n-tier web architecture, the model-view-controller pattern, interacting with VFP from the web, and using the Prototype JavaScript framework. The presenter then demonstrates rendering HTML from VFP, saving form data, and adding dynamic behavior to web pages using Prototype. Examples of good and bad JavaScript practices are also provided.
CBDW2014 - Down the RabbitMQ hole with ColdFusion
In this talk I will introduce attendees to the basics of messaging queues, their goals and applications from CFML. Messaging enables software applications to connect and scale. Thus, providing applications to connect to each other as components of a larger application, or to user devices and data. Messaging is asynchronous, and can decouple your software concerns with ease. However, messaging is much more than the traditional publish/subscribe patterns but also the ability to create work queues, routing and much more.
Introduction to Ruby on Rails
This document provides an introduction to Ruby and Ruby on Rails. It discusses what Ruby is, including that it is a dynamic, object-oriented programming language created in the 1990s. It then discusses what Rails is, which is an open source web application framework built on Ruby that follows the MVC pattern. Finally, it provides recommendations for installing Ruby and Rails and includes exercises for learning Ruby.
Opal chapter 4_a_new_hope
This document discusses Opal, a Ruby to JavaScript compiler. It provides 7 reasons why Opal will make developers happy: 1) It is a viable Ruby implementation, 2) It solves issues similarly to how Ruby would with Greenspun's 10th Rule, 3) It solves problems the Ruby way, 4) Developers can use familiar Ruby tools, 5) It integrates easily with Ruby code, 6) It provides new browser-based tools, and 7) It points to a new future of one language across front-end and back-end. The document encourages readers to try out Opal, provide feedback, and contribute to the project.
Opal - Ruby Style!! Ruby in the browser
The document discusses Opal, a Ruby runtime for JavaScript that compiles Ruby code to JavaScript. It can be used to write Ruby code that runs in the browser. The author expresses excitement about being able to use Ruby on both the frontend and backend and shares an example of using Opal to write a simple Ruby class that interacts with JavaScript. Key projects related to Opal are also listed.
Automating Your Daily Tasks with Scripting - RubyConf 2015 Taiwan
This talk aims to go through basic scripting skills in Ruby. Participants will have a better understanding in managing their daily tasks with scripting. For example, we can setup automated scripts to delete old files on a daily basis instead of doing it manually. These can be done with Bash, Perl and many other scripting languages, but among of which Ruby is better known for its readability. It is easier to write, maintain, and reuse. It saves some time on system management and allows us to put more focus on the projects.
Ruby and Rails short motivation
The document discusses why Ruby and Rails are good choices for programming. Ruby is designed to save time and make programming fun and easy to read. Rails provides a full-stack framework that embraces Ruby's philosophy of freedom and productivity. It includes features like MVC, ORM, internationalization and more. Some potential weak points are hosting on Windows and lack of POSIX support, but overall Ruby and Rails provide coherency and maximize productivity and happiness for developers.
Java script for foxpro developers
This document provides an overview of JavaScript for developers familiar with Visual FoxPro (VFP). It compares the runtime environments, development environments, capabilities, syntax, operators, and constructs between VFP and JavaScript. Key differences highlighted include JavaScript running in browsers across operating systems, its lack of file system access, and event-driven model compared to VFP's compiled runtime. The document aims to ease the transition for VFP developers by pointing out similarities in syntax and highlighting where JavaScript's prototype-based object model differs from VFP's class-based approach.
An introduction to the ruby ecosystem
An introductions to Ruby ecosystem: Ruby Implementations(MRI, Rubinius, Jruby) Interpreters(irb, pry), Version Managers(rbenv, RVM), Package Manager(RubyGems), Bundler, Rake, Web Frameworks(Ruby on Rails, Sinatra), Mobile Development(IronRuby, RubyMotion, Ruboto), Application Servers(Phusion Passenger, Unicorn, Puma), Deployment Automation(Capristano, Chef), Continuos Integration(Semaphorem Jenkins), Tests(TestUnit, minitest, RSpec, Capybara, Cucumber), Security Analiser(Brakeman).
Coroutines in Kotlin
This document provides an overview of Kotlin and coroutines. Kotlin is a statically typed language that runs on the JVM, Android and browsers. It features null safety, expressiveness, and full interoperability with Java. Coroutines allow writing asynchronous code that looks synchronous and avoid callback hell by running multiple async computations simultaneously using less memory than threads. Coroutines are lightweight and cooperative rather than preemptive like threads, and are managed by dispatchers instead of mapping to OS threads directly.
Functional Programming for Busy Object Oriented Programmers
This document provides an overview of the speaker's experience with programming languages and introduction to functional programming concepts. It discusses that the speaker was initially taught imperative languages like BASIC and C++ in college but was also exposed to Lisp, an early functional language. Several core FP concepts pioneered by Lisp like recursion, higher-order functions, and homoiconicity are explained. The document advocates using some FP principles like immutability and map/filter/reduce in other languages to gain benefits while not needing to be a "pure" functional programmer.
Great Tools Heavily Used In Japan, You Don't Know.
The document discusses Japanese Perl developers who attended YAPC::EU 2015. It introduces many popular Perl modules created by Japanese developers, such as WebService::Simple for making web service requests, Riji for creating blogs, and GrowthForecast for visualizing metrics graphs. It encourages attendees to talk to the Japanese developers about their work or any questions. It emphasizes that Japanese developers prioritize speed and simplicity in their modules due to their culture of valuing efficiency.
MobileConf 2021 Slides: Let's build macOS CLI Utilities using Swift
How to write CLI apps for macOS using swift, which packages to use, common challenges to overcome, how to structure your CLI app code.
PureScript Tutorial 1
This document provides an introduction and overview of PureScript, including:
- What PureScript is and why it was created (a pure functional language that compiles to JavaScript as an alternative to languages like JavaScript, Haskell, ELM)
- An overview of PureScript concepts like functions, records, recursion, maps/folds, pattern matching, and algebraic data types
- Instructions for setting up the PureScript development environment and writing a "Hello World" program
Let's Go
This document discusses using the Go programming language to build a new service. It provides an overview of Go, including that it has a small language footprint, supports concurrent tasks on multiple cores, and has good package support. It discusses how Go handles parallelism differently than Python by using goroutines within a single process. It then covers basic Go concepts like packages, functions, data types, structs, interfaces, and channels. It describes two small services the author built in Go - Gonotify, a notification service that uses Redis, and GoCheck, a PR checker that uses GitHub APIs. The document aims to make the case that Go is a good option for building new services due to its concurrency features and ease of use
RoR (Ruby on Rails)
Ruby on Rails presentation by Janis Caune!
Rubi is dynamic, reflective, object-oriented general purpose programming language.
Pengantar Ruby on Rails
Rails merupakan web framework yang dibuat dengan bahasa pemrograman Ruby, dikembangkan pertama kali oleh David Heinemeier Hansson pada tahun 2003. Rails juga open source tapi dengan lisensi MIT.
Kenapa rails :
1. Prinsip Convension over Configuration, memberikan banyak kemudahan dalam melakukan setting aplikasi seperti pembuatan controller, model, koneksi database, dsb.
2. Memiliki Gem / Plugin bisa dikatakan sebagai "external library" yang bisa dimasukan ke aplikasi. 2500++ kontributor resmi dan 41.000++ gems / plugin yang dibuat.
3. Syntax yang simple dan elegan.
4. "DRY ( Do not Repet Yourself )", yang intinya adalah efisiensi dalam manajemen codes.
Jslab rssh: JS as language platform
The document reviews JavaScript languages that can be compiled to JavaScript, including CoffeeScript, Dart, TypeScript, Traceur, Emscripten, Scala.js, ClojureScript, Kotlin, and others. It discusses their features like static typing, classes, async/await support, and ability to port other language ecosystems to run in the browser. It also covers architectures like Opa and Ur/Web that aim to use a single language across front-end, back-end, and databases.
Why ruby and rails
Reuven Lerner's first talk from Open Ruby Day, at Hi-Tech College in Herzliya, Israel, on June 27th 2010. An overview of what makes Rails a powerful framework for Web development -- what attracted Reuven to it, what are the components that most speak to him, and why others should consider Rails for their Web applications.
Ruby on Rails 3
This document discusses Ruby on Rails, an open-source web application framework written in Ruby. It provides an overview of Rails, outlines goals of designing and writing a blog to understand Rails principles, and demonstrates a blog. The closing remarks express love for aspects of Rails like MVC and database independence, but also frustration with sometimes having to interpret Rails' intentions.
Ruby On Rails Presentation
This is ruby on rails presentation on BarCamp Phnom Penh's day in Cambodia on Saturday, September 20th 2008.
RESTFul Tools For Lazy Experts - CFSummit 2016
Come discover what in the world are RESTFul services and what are its benefits over other API building technologies. We will cover the basics of HTTP representation protocols, RESTful routing, security, authentication and testing. We will then move to modeling RESTful resources via an open source tool called Relax; Restful Tools For Lazy Experts and finally scaling it with the Adobe API Manager.
Command Line Applications with Ruby
This document provides an overview and comparison of different Ruby libraries for building command line applications: Thor, GLI, and OptionParser. It discusses features like option parsing, subcommand support, testing tools, project structure, and best practices. Code examples are provided for building a CLI app called do_snapshot using Thor that implements commands, options, tests, and more based on common patterns for Ruby command line programs.
Slides with notes from Ruby Conf 2014 on using simple techniques to create sl...
This document summarizes a presentation about refactoring Rails code to improve organization and reduce complexity. It discusses using concerns to break up models and tests into logical groupings. It also recommends using Draper decorators to move presentation logic out of models. Additionally, it advises using presenters to consolidate data and logic between controllers and views. While patterns like service objects are discussed, the presentation emphasizes keeping things simple using plain Rails functionality like models, validation, and controllers when possible.
More Related Content
What's hot
Introduction to Ruby on Rails
This document provides an introduction to Ruby and Ruby on Rails. It discusses what Ruby is, including that it is a dynamic, object-oriented programming language created in the 1990s. It then discusses what Rails is, which is an open source web application framework built on Ruby that follows the MVC pattern. Finally, it provides recommendations for installing Ruby and Rails and includes exercises for learning Ruby.
Opal chapter 4_a_new_hope
This document discusses Opal, a Ruby to JavaScript compiler. It provides 7 reasons why Opal will make developers happy: 1) It is a viable Ruby implementation, 2) It solves issues similarly to how Ruby would with Greenspun's 10th Rule, 3) It solves problems the Ruby way, 4) Developers can use familiar Ruby tools, 5) It integrates easily with Ruby code, 6) It provides new browser-based tools, and 7) It points to a new future of one language across front-end and back-end. The document encourages readers to try out Opal, provide feedback, and contribute to the project.
Opal - Ruby Style!! Ruby in the browser
The document discusses Opal, a Ruby runtime for JavaScript that compiles Ruby code to JavaScript. It can be used to write Ruby code that runs in the browser. The author expresses excitement about being able to use Ruby on both the frontend and backend and shares an example of using Opal to write a simple Ruby class that interacts with JavaScript. Key projects related to Opal are also listed.
Automating Your Daily Tasks with Scripting - RubyConf 2015 Taiwan
This talk aims to go through basic scripting skills in Ruby. Participants will have a better understanding in managing their daily tasks with scripting. For example, we can setup automated scripts to delete old files on a daily basis instead of doing it manually. These can be done with Bash, Perl and many other scripting languages, but among of which Ruby is better known for its readability. It is easier to write, maintain, and reuse. It saves some time on system management and allows us to put more focus on the projects.
Ruby and Rails short motivation
The document discusses why Ruby and Rails are good choices for programming. Ruby is designed to save time and make programming fun and easy to read. Rails provides a full-stack framework that embraces Ruby's philosophy of freedom and productivity. It includes features like MVC, ORM, internationalization and more. Some potential weak points are hosting on Windows and lack of POSIX support, but overall Ruby and Rails provide coherency and maximize productivity and happiness for developers.
Java script for foxpro developers
This document provides an overview of JavaScript for developers familiar with Visual FoxPro (VFP). It compares the runtime environments, development environments, capabilities, syntax, operators, and constructs between VFP and JavaScript. Key differences highlighted include JavaScript running in browsers across operating systems, its lack of file system access, and event-driven model compared to VFP's compiled runtime. The document aims to ease the transition for VFP developers by pointing out similarities in syntax and highlighting where JavaScript's prototype-based object model differs from VFP's class-based approach.
An introduction to the ruby ecosystem
An introductions to Ruby ecosystem: Ruby Implementations(MRI, Rubinius, Jruby) Interpreters(irb, pry), Version Managers(rbenv, RVM), Package Manager(RubyGems), Bundler, Rake, Web Frameworks(Ruby on Rails, Sinatra), Mobile Development(IronRuby, RubyMotion, Ruboto), Application Servers(Phusion Passenger, Unicorn, Puma), Deployment Automation(Capristano, Chef), Continuos Integration(Semaphorem Jenkins), Tests(TestUnit, minitest, RSpec, Capybara, Cucumber), Security Analiser(Brakeman).
Coroutines in Kotlin
This document provides an overview of Kotlin and coroutines. Kotlin is a statically typed language that runs on the JVM, Android and browsers. It features null safety, expressiveness, and full interoperability with Java. Coroutines allow writing asynchronous code that looks synchronous and avoid callback hell by running multiple async computations simultaneously using less memory than threads. Coroutines are lightweight and cooperative rather than preemptive like threads, and are managed by dispatchers instead of mapping to OS threads directly.
Functional Programming for Busy Object Oriented Programmers
This document provides an overview of the speaker's experience with programming languages and introduction to functional programming concepts. It discusses that the speaker was initially taught imperative languages like BASIC and C++ in college but was also exposed to Lisp, an early functional language. Several core FP concepts pioneered by Lisp like recursion, higher-order functions, and homoiconicity are explained. The document advocates using some FP principles like immutability and map/filter/reduce in other languages to gain benefits while not needing to be a "pure" functional programmer.
Great Tools Heavily Used In Japan, You Don't Know.
The document discusses Japanese Perl developers who attended YAPC::EU 2015. It introduces many popular Perl modules created by Japanese developers, such as WebService::Simple for making web service requests, Riji for creating blogs, and GrowthForecast for visualizing metrics graphs. It encourages attendees to talk to the Japanese developers about their work or any questions. It emphasizes that Japanese developers prioritize speed and simplicity in their modules due to their culture of valuing efficiency.
MobileConf 2021 Slides: Let's build macOS CLI Utilities using Swift
How to write CLI apps for macOS using swift, which packages to use, common challenges to overcome, how to structure your CLI app code.
PureScript Tutorial 1
This document provides an introduction and overview of PureScript, including:
- What PureScript is and why it was created (a pure functional language that compiles to JavaScript as an alternative to languages like JavaScript, Haskell, ELM)
- An overview of PureScript concepts like functions, records, recursion, maps/folds, pattern matching, and algebraic data types
- Instructions for setting up the PureScript development environment and writing a "Hello World" program
Let's Go
This document discusses using the Go programming language to build a new service. It provides an overview of Go, including that it has a small language footprint, supports concurrent tasks on multiple cores, and has good package support. It discusses how Go handles parallelism differently than Python by using goroutines within a single process. It then covers basic Go concepts like packages, functions, data types, structs, interfaces, and channels. It describes two small services the author built in Go - Gonotify, a notification service that uses Redis, and GoCheck, a PR checker that uses GitHub APIs. The document aims to make the case that Go is a good option for building new services due to its concurrency features and ease of use
RoR (Ruby on Rails)
Ruby on Rails presentation by Janis Caune!
Rubi is dynamic, reflective, object-oriented general purpose programming language.
Pengantar Ruby on Rails
Rails merupakan web framework yang dibuat dengan bahasa pemrograman Ruby, dikembangkan pertama kali oleh David Heinemeier Hansson pada tahun 2003. Rails juga open source tapi dengan lisensi MIT.
Kenapa rails :
1. Prinsip Convension over Configuration, memberikan banyak kemudahan dalam melakukan setting aplikasi seperti pembuatan controller, model, koneksi database, dsb.
2. Memiliki Gem / Plugin bisa dikatakan sebagai "external library" yang bisa dimasukan ke aplikasi. 2500++ kontributor resmi dan 41.000++ gems / plugin yang dibuat.
3. Syntax yang simple dan elegan.
4. "DRY ( Do not Repet Yourself )", yang intinya adalah efisiensi dalam manajemen codes.
Jslab rssh: JS as language platform
The document reviews JavaScript languages that can be compiled to JavaScript, including CoffeeScript, Dart, TypeScript, Traceur, Emscripten, Scala.js, ClojureScript, Kotlin, and others. It discusses their features like static typing, classes, async/await support, and ability to port other language ecosystems to run in the browser. It also covers architectures like Opa and Ur/Web that aim to use a single language across front-end, back-end, and databases.
Why ruby and rails
Reuven Lerner's first talk from Open Ruby Day, at Hi-Tech College in Herzliya, Israel, on June 27th 2010. An overview of what makes Rails a powerful framework for Web development -- what attracted Reuven to it, what are the components that most speak to him, and why others should consider Rails for their Web applications.
Ruby on Rails 3
This document discusses Ruby on Rails, an open-source web application framework written in Ruby. It provides an overview of Rails, outlines goals of designing and writing a blog to understand Rails principles, and demonstrates a blog. The closing remarks express love for aspects of Rails like MVC and database independence, but also frustration with sometimes having to interpret Rails' intentions.
Ruby On Rails Presentation
This is ruby on rails presentation on BarCamp Phnom Penh's day in Cambodia on Saturday, September 20th 2008.
RESTFul Tools For Lazy Experts - CFSummit 2016
Come discover what in the world are RESTFul services and what are its benefits over other API building technologies. We will cover the basics of HTTP representation protocols, RESTful routing, security, authentication and testing. We will then move to modeling RESTful resources via an open source tool called Relax; Restful Tools For Lazy Experts and finally scaling it with the Adobe API Manager.
What's hot (20)
Automating Your Daily Tasks with Scripting - RubyConf 2015 Taiwan
Automating Your Daily Tasks with Scripting - RubyConf 2015 Taiwan
Functional Programming for Busy Object Oriented Programmers
Functional Programming for Busy Object Oriented Programmers
Great Tools Heavily Used In Japan, You Don't Know.
Great Tools Heavily Used In Japan, You Don't Know.
MobileConf 2021 Slides: Let's build macOS CLI Utilities using Swift
MobileConf 2021 Slides: Let's build macOS CLI Utilities using Swift
Viewers also liked
Command Line Applications with Ruby
This document provides an overview and comparison of different Ruby libraries for building command line applications: Thor, GLI, and OptionParser. It discusses features like option parsing, subcommand support, testing tools, project structure, and best practices. Code examples are provided for building a CLI app called do_snapshot using Thor that implements commands, options, tests, and more based on common patterns for Ruby command line programs.
Slides with notes from Ruby Conf 2014 on using simple techniques to create sl...
This document summarizes a presentation about refactoring Rails code to improve organization and reduce complexity. It discusses using concerns to break up models and tests into logical groupings. It also recommends using Draper decorators to move presentation logic out of models. Additionally, it advises using presenters to consolidate data and logic between controllers and views. While patterns like service objects are discussed, the presentation emphasizes keeping things simple using plain Rails functionality like models, validation, and controllers when possible.
Railsguide
This document provides a summary of the Rails command line interface and common commands. It begins with an overview of essential commands for creating a Rails application, starting the development server, generating models and controllers, and using the console. It then covers more advanced commands and utilities like using different databases, web servers, generators, Rake tasks, and the plugin installer. The document demonstrates many of these commands through examples like generating a controller and scaffold.
Introducing Command Line Applications with Ruby
This document discusses building command line applications in Ruby. It covers using OptionParser and Mixlib::CLI for parsing arguments, Thor for building commands, testing CLI apps, interacting with the system via libraries like Mixlib::ShellOut, and logging to standard output and error. The target audience is developers looking to get started with Ruby command line programs.
Developing cross platform desktop application with Ruby
A brief introduction and example of developing desktop application with Ruby programming language. JRuby and shoesrb is discussed as platform.
Prepared for and Presented on Ruby Conference Bangladesh 2003.
Viewers also liked (6)
Slides with notes from Ruby Conf 2014 on using simple techniques to create sl...
Slides with notes from Ruby Conf 2014 on using simple techniques to create sl...
Developing cross platform desktop application with Ruby
Developing cross platform desktop application with Ruby
Similar to Making CLI app in ruby
The Ring programming language version 1.2 book - Part 4 of 84
The document provides an overview and documentation of the Ring programming language. It discusses the history and development of Ring, beginning in 2013. Key features of Ring include being small and fast, with a compact syntax, dynamic typing, garbage collection, object-oriented support, and the ability to embed Ring code in C/C++ programs. The documentation also covers Ring's license, language design principles such as simplicity and organization, and its visual implementation process.
Building a Cross-Platform Mobile SDK in Rust.pdf
This document discusses building a cross-platform mobile SDK in Rust. It introduces UniFFI, an open-source binding generator that produces idiomatic bindings for Swift, Kotlin, and other languages from an Interface Definition Language file. While cross-compilation for iOS is straightforward, Android requires configuring linker paths. Shipping the library also requires additional steps like creating a framework and dealing with platform-specific quirks in Swift and Android. Open questions remain around repository structure, build systems, and exploring Android further. Resources for UniFFI and compiling Rust for Android are provided.
Jit builder status and directions 2018 03-28
Quick status summary of the JitBuilder library at the Eclipse OMR project, followed by the areas the community is currently focusing on for 2018. This presentation is a starting point for ongoing discussion with the community of users and contributors; there are many GitHub issue links where you can join us to participate in the evolution of this exciting project!
SGCE 2015 REST APIs
This document provides an overview of building REST APIs for distributed systems. It discusses motivation for APIs and the importance of an API contract. The document then covers tools for defining the API contract like RAML and code generation. It presents microservices architecture and implementation options using Spring Boot, Spring Cloud, and Netflix OSS frameworks. The talk concludes with a demo of a microservices application deployed with Docker.
APIs distribuidos con alta escalabilidad
This document provides an overview of building REST APIs for distributed systems. It discusses motivation for APIs and the importance of an API contract. The document then covers tools for defining the API contract like RAML. It presents microservices architecture and implementation options like Spring Boot, Spring Cloud and Netflix OSS. The talk concludes with a demo of a microservices application deployed with Docker.
Php internal architecture
The internal structure of PHP and how it affects deployment, usage, and extensibility both now and in the future
.NET Core, ASP.NET Core Course, Session 3
Session 3,
Introducing to Compiler
What is the LLVM?
LLILC
RyuJIT
AOT Compilation
Preprocessors and Conditional Compilation
An Overview on Dependency Injection
C++ programming languages lectures
Low level, High level and Middle level programming languages
,Bug and Debugging ,difference between compiler and interpreter,instructions and program,source code and object code ,language translators
Phonegap Day 2016: Ember/JS & Hybrid Apps Tips
Talk about general profiling & performance for Hybrid Applications, as well as some Ember specific tips. For Cordova + PhoneGap.
Presented on Jan 29 2016 at PhoneGap Day in Salt Lake City.
[Srijan Wednesday Webinars] Building Full-Fledged Native Apps Using RubyMotion
Speaker: Laurent Sansonetti
This webinar takes us through RubyMotion, an app development environment that helps you build native apps using the Ruby language. We take a look at how RubyMotion works internally, how it’s different for other mobile toolchains and how we can build cross-platform apps with it.
The session also presents a live demo of Flow, that let's you access both iOS and Android APIs on one single codebase, making it extremely easy to build cross-platform apps.
Web APIs: The future of software
Since the beginning of software, we have bundled frequently-used functionality into libraries -- both our own, and those created by third parties. APIs tell software developers how to use a library, and make it possible for developers to treat libraries as black boxes, considering only what the library does, not how it does it.
Today, as software moves increasingly to the Web, APIs and libraries are also moving to the Web. This means that you can now outsource, by means of Web APIs, a huge amount of your application's functionality.
What does this mean for software developers? What does this mean for the future of software development? In this talk, I describe the past, present, and future of APIs, and how I believe the Web is changing the landscape.
Introduction to Compilers
This document provides an overview of compilers and translation processes. It defines a compiler as a program that transforms source code into a target language like assembly or machine code. Compilers perform analysis on the source code and synthesis to translate it. Compilers can be one-pass or multi-pass. Other translators include preprocessors, interpreters, assemblers, linkers, loaders, cross-compilers, language converters, rewriters, and decompilers. The history and need for compilers and programming languages is also discussed.
ConFoo Montreal - Microservices for building an IDE - The innards of JetBrain...
Ever wondered how IDE’s are built? In this talk, we’ll skip the marketing bit and dive into the architecture and implementation of JetBrains Rider. We’ll look at how and why we have built (and open sourced) a reactive protocol, and how the IDE uses a “microservices” architecture to communicate with the debugger, Roslyn, a WPF renderer and even other tools like Unity3D. We’ll explore how things are wired together, both in-process and across those microservices. Let’s geek out!
Programming language
Information about the level of programming language, types of programming language, the principal paradigms, few programming languages, criteria for good language.
What is c#
C# is an object-oriented programming language that was introduced by Microsoft in 2000. It allows developers to build reusable components for a variety of application types. C# code is compiled into an intermediate language (IL) that is then just-in-time compiled and executed by the .NET Common Language Runtime (CLR). The CLR handles memory management, garbage collection, and other services so developers do not have to write that code. Because C# relies on the CLR, it has access to the .NET Framework Class Library which includes tens of thousands of reusable objects. This allows C# to be used for desktop applications, web applications, web services, databases and more.
c# usage,applications and advantages
C# was created by Microsoft as part of its .NET framework. It was originally called "Cool" but was renamed to C# by the time of .NET's public release in 2000. C# syntax is similar to C, C++ and Java, using semicolons, curly brackets and other common elements. It has advantages over Java like better performance and advantages over C/C++ like automatic memory management and not needing header files. C# can be used to create desktop apps, web apps, services and more.
App::RemoteCommand
App::RemoteCommand is a simple remote command launcher via SSH. It was created because existing IT automation tools can be obtrusive for ad hoc operations, while SSH alone lacks power. Key features include executing commands in parallel on multiple hosts, remembering sudo passwords, specifying local script files, and appending host/time to output. It is built on Net::OpenSSH for its SSH capabilities and uses its own event loop to monitor SSH connections and processes.
sl slides-unit-1.pptx
The document discusses various scripting languages including Ruby, Perl, and TCL. It covers the basics of each language as well as more advanced concepts like object-oriented programming in Ruby, regular expressions in Perl, and event-driven programming in TCL. The document also compares scripting languages to other programming languages and explores differences between languages like Ruby versus Java and Ruby versus Perl.
Introduction to Python for Security Professionals
This webcast introduces Python for security professionals. The goal is to inspire others to push past the initial learning curve to harness the power of Python. This is just a quick glance at the power that awaits anyone willing to gain the skill. If you are looking for more resources check out DrapsTV's YouTube channel.
Microservices for building an IDE – The innards of JetBrains Rider - TechDays...
Ever wondered how IDE’s are built? In this talk, we’ll skip the marketing bit and dive into the architecture and implementation of JetBrains Rider. We’ll look at how and why we have built (and open sourced) a reactive protocol, and how the IDE uses a “microservices” architecture to communicate with the debugger, Roslyn, a WPF renderer and even other tools like Unity3D. We’ll explore how things are wired together, both in-process and across those microservices. Let’s geek out!
Similar to Making CLI app in ruby (20)
The Ring programming language version 1.2 book - Part 4 of 84
The Ring programming language version 1.2 book - Part 4 of 84
[Srijan Wednesday Webinars] Building Full-Fledged Native Apps Using RubyMotion
[Srijan Wednesday Webinars] Building Full-Fledged Native Apps Using RubyMotion
ConFoo Montreal - Microservices for building an IDE - The innards of JetBrain...
ConFoo Montreal - Microservices for building an IDE - The innards of JetBrain...
Microservices for building an IDE – The innards of JetBrains Rider - TechDays...
Microservices for building an IDE – The innards of JetBrains Rider - TechDays...
More from Huy Do
Distributed Tracing, from internal SAAS insights
This document discusses challenges with open source distributed tracing solutions and potential improvements. It outlines problems with storage costs and scalability, instrumentation libraries, and user interfaces when using tracing for multi-tenant systems. Alternative approaches are proposed, including using logs instead of traces to analyze performance, tail-based sampling methods, and log-first architectures that construct traces from buffered spans. The document suggests moving open source tracers to a firehose mode and developing a new trace client that samples traces based on features and errors to prioritize useful data while limiting storage costs.
Write on memory TSDB database (gocon tokyo autumn 2018)
The document discusses building a time series database (TSDB) for storing metrics data. It describes needing fast write and read speeds with efficient storage usage. It evaluated existing solutions but found they did not meet performance or cost needs. The team decided to build their own in-memory TSDB using several open source Go packages - Prometheus/tsdb for storage, valyala/gozstd for compression, hashicorp/raft for replication, and LINE/centraldogma for configuration management. Their resulting storage can write over 1 million samples per second and store billions of samples in a single machine.
Some note about GC algorithm
This document discusses garbage collection (GC) algorithms and their implementation. It provides high-level information about GC including that it collects garbage to prevent memory leaks, identifies live objects, and reclaims space from dead objects. It then discusses specific GC algorithms like mark-sweep GC in more detail and how hard their implementation can be, touching on marking phases, sweeping phases, and challenges like conservative vs precise GC. Example code is provided for a simple mark-sweep GC. Overall the document aims to explain why understanding GC implementation is important for performance and avoiding issues like application hangs.
Engineering Efficiency in LINE
The document describes Lineflow, an internal tool developed by LINE corp to improve engineering efficiency. It aims to automate LINE's software development process through a command line interface. Key points:
- Lineflow was built with Golang to define commands as a domain-specific language that reflects LINE's development workflow. It tracks command history to suggest next steps.
- This helped save engineers time by automating repetitive manual tasks like copying code between branches. It is estimated to save 41 engineer-hours per day.
- Developing internal tools requires dedicated resources and evangelism to gain adoption, but it lays the foundation for further improvements and integration with other tools.
GOCON Autumn (Story of our own Monitoring Agent in golang)
This document discusses building a monitoring agent in Go and describes key components and design considerations. It proposes:
1. A modular agent architecture with pluggable inputs, codecs, and outputs to collect host metrics.
2. A push-based collection model where inputs directly retrieve metrics to reduce middleware impact.
3. A buffer to prevent data loss during output failures by maintaining write offsets.
4. Exposing agent state via HTTP for monitoring health, performance, and preventing issues like resend storms.
The agent is intended to be scalable, reliable, and manageable for deploying monitoring at scale. Go is chosen for its portability and quick prototyping abilities.
Story Writing Byte Serializer in Golang
This document discusses writing a custom byte serializer in Go. It begins by outlining some common serialization libraries and their drawbacks. The document then describes designing a custom serializer with a fixed struct layout that directly encodes fields without reflection, for better performance. An initial implementation performs well but is improved further by rewriting it to reuse a single global buffer and eliminate allocations. Benchmarking shows the optimized custom serializer can achieve speeds comparable to the fastest libraries. Overall lessons learned include avoiding hidden allocations, handling serialization failures robustly, and adding features like versioning and checksums for reliability.
DI in ruby
This document discusses dependency injection in Ruby. Dependency injection is when one part of code uses or relies on another part. In Ruby, common ways to implement dependency injection include using the constructor/initialize method and passing parameters, including modules, and inheritance. While these provide dependency injection, they can also introduce disadvantages like tight coupling, unexpected behavior from included modules, and rigid inheritance hierarchies. Dependency injection frameworks provide an alternative approach but may not be needed for many Ruby applications. The key benefits of dependency injection are improved testability, loose coupling between classes, and more extensible code.
More from Huy Do (15)
Write on memory TSDB database (gocon tokyo autumn 2018)
Write on memory TSDB database (gocon tokyo autumn 2018)
GOCON Autumn (Story of our own Monitoring Agent in golang)
GOCON Autumn (Story of our own Monitoring Agent in golang)
Recently uploaded
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Literature Review Basics and Understanding Reference Management.pptx
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Understanding Inductive Bias in Machine Learning
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
The Python for beginners. This is an advance computer language.
Python language is very important language at this time. we can easily understand this language by these notes.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
22CYT12-Unit-V-E Waste and its Management.ppt
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Unit-III-ELECTROCHEMICAL STORAGE DEVICES.ppt
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
For International shipping and maritime laws all wood must contain the ISPM 15 Stamp. Here is how and why.
ACEP Magazine edition 4th launched on 05.06.2024
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Recently uploaded (20)
Literature Review Basics and Understanding Reference Management.pptx
Literature Review Basics and Understanding Reference Management.pptx
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning an...
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...
gray level transformation unit 3(image processing))
gray level transformation unit 3(image processing))
BPV-GUI-01-Guide-for-ASME-Review-Teams-(General)-10-10-2023.pdf
BPV-GUI-01-Guide-for-ASME-Review-Teams-(General)-10-10-2023.pdf
The Python for beginners. This is an advance computer language.
The Python for beginners. This is an advance computer language.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Advanced control scheme of doubly fed induction generator for wind turbine us...
Advanced control scheme of doubly fed induction generator for wind turbine us...
Making CLI app in ruby
- 1. Making CLI app with ruby
- 2. I'm Huy @huydx I'm software developer base in Tokyo, Japan Blogger at http://ktmt.github.io
- 3. What is CLI app • CLI stand for command-line interface • Some examples of CLI app Git $git log --UI --word-diff Grep $grep -c false /etc/passwd mysql-cli >mysql ruby-irb 2.1.3 :001 > 1 + 1 #2 single line shell interactive shell
- 4. Why making CLI app • We are programmers, we live in terminal • Good CLI tool make our life easier • Using terminal make us feel like a god
- 6. Introduce Thor erikhuda/thor "Thor is a simple and efficient tool for building self-documenting command line utilities." Using thor, we can build single command line app with ease
- 7. Let's make a simple THOR app (live coding)
- 8. But.....
- 9. Single line shell app is somewhat boring~~~
- 10. Let's make interactive shell app using REPL • REPL stands for read–eval–print loop • REPL can simply be a loop ! while (line=gets) do #do something with line end ! • Using REPL makes our app more interactive
- 11. Writing complex interactive shell from the scratch is hard...
- 12. Introduce Readline "The GNU Readline library provides a set of functions for use by applications that allow users to edit command lines as they are typed in. " http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html GNU readline binding for ruby is a built in STL!!!!!!
- 13. What Readline capable of • Customize-able prompt!!! • Manage-able history • Auto completion • Interchange-able editing mode (vim, emacs)
- 14. Let's make a simple Readline app (live coding)
- 15. Some tips to make better CLI app • Do one thing • Playing well with Others (streams, exit code) • Have clear, concise purpose • Perfect documentation
- 16. FACY facebook command line app huydx.com/facy
- 17. This is how my app looks like
- 19. Thank you for listening!!!