You login to a Linux server with a performance issue: what do you check in the first minute? uptime
If you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's...
MarcoPolo shows your app name and environment in your console prompt so you don't accidentally break production Officially supporting...
List of cloud services and SaaS with a free tier for developers or that are generally free for open source...
I got the following error after updating the selenium-webdriver gem: wrong number of arguments (0 for 1) (ArgumentError) /home/pointoo-dev/.rvm/gems/ruby-1.8.7-p374/gems/selenium-webdriver-2.35.1/lib/selenium/webdriver/common/platform.rb...
Preview what your markdown would look like on Github. Helpful e.g. when writing or extending a Readme for your gem...
Geordi 1.0 features a command line application geordi, that holds most of Geordi's previous commands. New features
Make sure you have libcurl3-dev installed: sudo apt-get install libcurl3-dev gem install typhoeus
We will be installing rbenv and ruby-build from our own fork, not from the Ubuntu sources. Installing rbenv
If you get an error like this: An error occurred while installing pg (0.17.1), and Bundler cannot continue.
Your development machine is usually on a very good network connection. To test how your application behaves on a slow...
Ubuntu 12.04 LTS x64, Ruby 1.8.7, Rails 2.13, PDFKit 0.5.4, Phusion Passenger Apache 2 I ran into this, when I...
Weighttp is threaded and might exhaust resources of an application better than ApacheBench or httperf. You need libev installed.
Ubuntu has a package mysql-sandbox that lets you install multiple MySQL versions into your user home: Install mysql-sandbox...
Establishing a new SSH connection usually takes only a few seconds, but if you’re connecting to a server multiple...
Do this before you install the gem: sudo apt-get install libffi-dev
How to make class_attribute behave like class_inheritable_attribte which no longer exists in Rails.
When requests arrive at the application servers simultaneously, weird things can happen. Sometimes, this can also happen if a user...
Install libreadline: sudo apt-get install libreadline-dev Reinstall the ruby and tell rvm where to find readline
If you get this: Installing typhoeus (0.3.3) with native extensions /usr/local/lib/site_ruby/1.8/rubygems/installer.rb:483:in `build_extensions': ERROR: Failed to build gem...
Oniguruma is an advanced regular expression engine for Ruby. Install Oniguruma with binary dependencies like this: sudo apt-get install...
Install Ruby from the Ubuntu repository: sudo apt-get install ruby ruby-dev \ ruby is the meta package. If you...
sudo apt-get install sqlite3 libsqlite3-dev sudo gem install sqlite3-ruby
apt-get install libcurl3-dev