When you simply want to get to know Puppet, follow puppetlabs’ Learning Puppet Docs. They give you a handy introduction...
Although regular expression syntax is 99% interchangeable between languages, keep this in mind: By default, the dot character (".") does not...
Automatically convert bitmap images like JPEGs, GIFs and PNGs to the crisp, clean, scalable vector art of EPS, SVG, and...
The trick is this: send a low-resolution version of your image to the screen, and a high-resolution version...
The Ubuntu Documentation on LaTeX says, that the packages tetex are no longer supported. You can install the alternative texlive...
PhantomJS is a minimalistic headless WebKit. It has fast and native support for various web standards: DOM handling, CSS selector...
blueprint is DevStructure’s workhorse tool that looks inside popular package managers, finds changes you made to configuration files, and...
Specify these gem versions in your Gemfile: gem 'cucumber', '~> 1.3.0' gem 'cucumber-rails', '= 0.3.2' # max version for Rails 2
If you plan to insert an existing PDF into a new LaTeX document that you will compile to PDF, you...
Merging .po-files with Git is painful. There have been attempts of making Git more clever when trying to merge...
The shell variable PS1 holds your bash prompt. You might want to change it to serve your needs best. Here...
If in your application your users pass along params that result in filenames, like invoices/generated?number=123. This could be...
The speed searching for makandra notes in Firefox can be improved by following these steps: Download the Firefox-Add-on...
Around the time in my life when I stopped ordering drinks made with more than one ingredient, I was woken...
RubyGems 1.6.0 has undergone some changes which may cause Rails 2.x applications to break with an error like this...
If you have content inside a page that is hidden by CSS, the following will work with Selenium, but not...
If you want to get a deep understanding of how closures, blocks, procs & lambdas in Ruby work, check out the...
If you use a form (or form fields) multiple times inside one view, Rails will generate the same id attributes...
Although you can access many symbols using the AltGr key you may be missing some, like the en-dash (–) or...
Note: For PostgreSQL you should use advisory locks. For MySQL we still recommend the solution in this card.
In order to bring up a textual description of a Capistrano task you can say cap -e taskname ... where taskname...
This note describes a Cucumber step definition that lets you say: Then "Mow lawn" should be an option for "Activity...
If you run specs or your application and get an error like: ActionController::MissingFile in 'ProductsController#show, should render PDF...
When defining a trait using the Modularity gem, you must take extra steps to define constants to avoid caveats (like...