I couldn't successfully execute a simple iptables command and got this error on an Ubuntu server: # /sbin/iptables -I INPUT...

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

When using git diff, you might encounter weird characters where umlauts (or any other UTF-8) characters should be. It...

Traveling Ruby is a project which supplies self-contained, "portable" Ruby binaries: Ruby binaries that can run on any Linux...

Adobe no longer supports their PDF reader on Linux and the official page does not offer it for download. \

The Rails asset pipeline improves delivery of application assets (javascripts, stylesheets, images, fonts). Here are some basic facts about its...

Option 0: Download from the official page (preferred) Open https://googlechromelabs.github.io/chrome-for-testing/ In Section "Stable" > chromedriver / linux64 > Download ZIP from...

Starting Terminator with split screens is quite simple: Just store a layout and start Terminator with the --layout option.

Have you ever opened a file with vim, edited it and when you wanted to save your changes it told...

If bower complains about a missing node binary, do not install Ubuntu's node package. Instead, you need to create...

Google Calendar integration into Thunderbird suddenly did not work any more for me. Thunderbird kept asking me for my password...

If you make a gem with Bundler, you will get a rake release task that will instantly publish your gem...

Using this gem I could get JSON generation from a large, nested Ruby hash down from 200ms to 2ms.

Put the font files (e.g. ttf) into ~/.fonts Run fc-cache -v Or, if you prefer to use the GUI...

Firefox 5.0.1, which we were using for most Rails 2.3 projects, does not run on Ubuntu 14.04 any more. Here...

tlmgr is the TeX Live Manager and responsible for the TeX installation on your (Linux) machine. If you're getting...

Just install the texlive-xetex package: sudo apt-get install texlive-xetex Running integration tests without texlive-xetex will produce...

The asset pipeline changes the paths of CSS files during precompilation. This opens a world of pain when CSS files...

bower-rails is a great solution for managing vendored assets in your Rails app. It feels especially much more convenient...

In Thunderbird, you can set custom font faces and sizes for reading plain-text e-mails. However, Thunderbird sometimes "randomly...

There are different ways to run rake: On Rails 4.1+ projects, you have Spring and its binstubs which dramatically improve...

When your system is not running on English, you may sometimes want to run some applications and not use your...