Wondering which processes are placed in your swap you can use this bash oneliner: for file in /proc/*/status ; do...
Logging tcpdump output all the time can create a huge amount of data. This can be both: too much data...
When you make a simple TCP connection to a remote server (like telnet), your client won't normally notice when...
On Ruby 1.9+, standard ruby character classes like \w, \d will only match 7-Bit ASCII characters: "foo" =~ /\w+/ # matches...
If you'd like to preview the crontab that whenever will deploy, run the following: bundle exec whenever
Running projects parallel makes some trouble with PDF generation. Use geordi rspec spec to force sequential tests for the whole...
dmesg shows the kernel ring buffer containing low-level system messages. Per default, dmesg shows a timestamp:
Fontawesome 4 has introduced new naming conventions that make it easy to retrieve variants of a given icon.
This cheat sheet...
...aims at providing a quick reference to the most commonly used features in AngularJS.
Gem to show failing specs instantly. Unlike the --fail-fast option it doesn't abort abort on the first failure...
Adobe no longer supports their PDF reader on Linux and the official page does not offer it for download. \
By default, Twitter Bootstrap's print styles include printing links. /* Bootstrap's way of printing URLs */ @media print {
tlmgr is the TeX Live Manager and responsible for the TeX installation on your (Linux) machine. If you're getting...
If you have issues with PDFs, fix them like this: pdftk .pdf output .pdf Background I had an issue where...
Just install the texlive-xetex package: sudo apt-get install texlive-xetex Running integration tests without texlive-xetex will produce...
We upgraded a Rails 2 application to Rails 3.2 and Ruby 2.1, changed the mysql adapter from mysql to mysql2...
If you're using the :header_html option in PDFKit (or the corresponding --header-html option in wkhtmltopdf), and the...
When your system is not running on English, you may sometimes want to run some applications and not use your...
PDFKit converts a web page to a PDF document. It uses a Webkit engine under the hood...
When you have a string containing umlauts which don't behave as expected (are not matched with a regexp, can...
MuPDF is a PDF reader that renders very quickly, yet still correctly. It supports PDF 1.7 and all the fancy...
So you want your Ruby script to install missing gems instead of dying? Take this method: def installing_missing_gems...
If you regularly get ActionView::MissingTemplate exceptions, maybe some bot visits your site requesting silly formats like: http://www.rails-app.com/makandra.html-username-2000...
Sometimes you may want to print files from the command line, especially when you have lots of them.