ruby build gem

required gems will be an exceptionally painful experience, fortunately, now you can use the mirror taobao: $ gem Sources--remove https://rubygems.org/ $ gem sources-a http://ruby.taobao.org/ $ gem sources-l If the display: Current SOURCES * * * http://ruby.taobao.org It means the change is successful, you can now install Rugy gems f

: (in/usr/local/system/entos/netposa_redmine) Rake Gems: Build # Build any native extensions for unpacked gems Rake Gems: Build: Force # Force the build of all gems Rake Gems: Install # installs all required gems. Rake Gems: Refresh_specs # Regenerate gem speci

Ruby-v # view the ruby VERSION ruby-e '''require "watir"; puts Watir: IE: version'' # view the watir VERSION Rvm list known # list known ruby versions Rvm install 1.9.3 Rvm use 1.9.3 | rvm use system Rvm use 1.9.3 -- default Rvm list # list local ruby versions Rvm remove 1.9

Problem Description: Under the Ubuntu system, the Ruby development environment is installed first through the command sudo apt-get install Ruby, and then with the command-line gem install Jekyll install the GitHub page's development tool Jekyll, encountered an error message: Failed to build

Ruby + gem common commands: ruby-e amp; #39; amp; #39; require quot; watir quot; putsWatir: IE: VERSION amp; #39; amp; #39; # View watir version gem-v # gem version gemupdate # Update all packages gemupdate -- s ruby +

Ruby-v #查看ruby version ruby-e ' require ' watir; Puts Watir::ie::version ' #查看watir版本 RVM list Known #列出已知的ruby版本 RVM Install 1.9.3 RVM Use 1.9.3 | RVM Use System RVM Use 1.9.3--default RVM List #列出本地ruby版本 RVM Remove 1.9.2 See RVM Practical Guide for specific details

Tutorial on creating a custom Ruby gem package, rubygem Write a simple example 1. Create the following folder Note: The lib directory must have a rb file with the same name as your gem. Copy codeThe Code is as follows:$ Cd hola$ Tree.├ ── Hola. gemspec── Lib└ ── Hola. rb 2. write code . Hola. rb % cat lib/hola.rb class Hola def self.hi puts "Hello worl

Ruby + gem Common commands: ruby-e ''require "watir"; puts Watir: IE :: VERSION ''# view watir VERSION gem-v # gem VERSION gem update # update all packages gem update -- system # update

After building the Ruby on Rails environment, running the bundle command in a new project encounters the following error:Workaround: Install DevkitTo rubyinstaller website download page Select the Devkit download for your system (here I downloaded the last one):When the download is complete, double-click devkit-mingw64-64-4.7.2-20130224-1432-sfx.exe:Set the extracted folder (for example, C:\DevKit), after decompression to see, the contents of the fold

that contains executable files. 1. Build a bin folder in just the engineering directory The executable file is generated, and the Modify permission is runnable. % mkdir bin % touch Bin/hola % chmod a+x Bin/hola 2. Modify the contents of the executable fileBin/hola #!/usr/bin/env Ruby require ' Hola ' puts Hola.hi (argv[0) Test under %

always be the first Gem installed on the system. Rake is a build tool similar to Make, but it allows Ruby to write Rakefile (how to build a definition file ), specifically, a specific DSL (domain-specific language) is used to provide high readability while maintaining Ruby's powerful functions. Rails uses rake extensi

always be the first gem installed on the system. Rake is a build tool similar to make, but it allows Ruby to write rakefile (how to build a definition file ), specifically, a specific DSL (domain-specific language) is used to provide high readability while maintaining Ruby's powerful functions. Rails uses rake extensi

it should always be the first gem you install on the system. Rake is a build tool that is similar to make, but it allows Ruby to write Rakefile (how to build a definition file) that uses a particular DSL (Domain-specific language, domain-specific language), Provides high readability while maintaining the power of

Transferred from: http://www.jianshu.com/p/728184da1699Gem Introduction:Gem is a standard package for managing Ruby libraries and programs, and it is easy to find, install, upgrade, and uninstall packages through Ruby Gems such as http://rubygems.org/.Ruby 1.9. Version 2 has the Ruby

Ruby Gem command and rubygem command I. Introduction Gem is a standard package for managing Ruby libraries and programs. It is very convenient to find, install, upgrade, and uninstall software packages through Ruby Gem (such as h

Common Ruby Package Manager gem commands and common rubygem commands Gem-related commands 1. display the help and version of gemCopy codeThe Code is as follows:Gem-h/-- help# Display the help of gem Gem-v/-- version# Display the gem