Install libreadline: sudo apt-get install libreadline-dev Reinstall the ruby and tell rvm where to find readline
Your current ruby must be Ruby Enterprise. gem install passenger passenger-install-apache2-module Edit your httpd.conf according to the...
When you are calling a method that may raise an exception that you don't care about, you might think...
REST Client is a nice, simple HTTP client library for Ruby. When you do a simple GET request like that...
Copy the attached file to config/initializers/indent_string.rb and you can say "foo".indent(4) # " foo" Note you will find many simpler...
Imagine you have a piece of code that tries to send a request to a remote server. Now the server...
ProgressBar is a simple Ruby library for displaying progress of long-running tasks on the console. It is intended to...
Gem to get Ruby 1.9 features in Ruby 1.8.
Code coverage for Ruby 1.9 with a powerful configuration library and automatic merging of coverage across test suites.
This note summarizes the ruby exception hierarchy. Exception NoMemoryError ScriptError LoadError NotImplementedError SyntaxError SignalException Interrupt Timeout::Error # < ruby 1.9.2 StandardError...
Using .downcase or .upcase on strings containing umlauts does not work as expected in Ruby versions before 2.4. It leaves...
When selecting records in a date range, take care not to do it like this: start_date = Date.parse('2007-05...
Although it's tempting flirt with detecting mobile/touch devices with CSS media queries or Javascript feature detection alone, this approach...
Note: capistrano_colors was merged into Capistrano starting from v2.13.5. However, this requires Ruby 1.9+. If you cannot upgrade Capistrano...
Ruby bindings for Sundown, a fast and full-featured Markdown parser that lets you define renders for arbitrary output formats...
Guide to writing CLI scripts in Ruby that play nice with pipe chains.
When Rack::Bug has been added to your project and your Apache2/Passenger only replies with an Error 500 (Internal Server...
Framework to write command-line apps in Ruby. Comes with a nice way of processing parameter options, some utility classes...
[1,2,3,4].sample # => e.g. 4 If you'd like to cheat and give different weights to each element...
When you use one line Ruby comments in ERB templates you should never do this (notice the whitespace in front...
Seems like a useful gem for cases where ActiveRecord is overkill but you don't want to do everything by...
To use different Ruby versions on your computer you can use the Ruby Version Manager. It also allows you to...
require 'open-uri' File.open('/target/path/to/downloaded.file', "wb") do |file| file.write open('http://example.com/your.file').read end Basic Authentication
There are several options, but most of them are impractical. The best way is to use the :ruby filter: