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Posted about 5 years ago by Thomas Eisenbarth.

dmesg shows the kernel ring buffer containing low-level system messages. Per default, dmesg shows a timestamp:

Posted about 5 years ago by Dominik Schöler. yoyo.io

Fontawesome 4 has introduced new naming conventions that make it easy to retrieve variants of a given icon.

Posted over 5 years ago by Henning Koch. github.com

Gem to show failing specs instantly. Unlike the --fail-fast option it doesn't abort abort on the first failure...

Posted almost 10 years ago by Henning Koch.

This is an awesome gadget in your toolbox, even if your test coverage is great. gem install ruby-debug (Ruby...

Posted over 5 years ago by Arne Hartherz. askubuntu.com

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

Posted over 5 years ago by Thomas Klemm.

By default, Twitter Bootstrap's print styles include printing links. /* Bootstrap's way of printing URLs */ @media print {

Posted over 5 years ago by Dominik Schöler. tex.stackexchange.com

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

Posted over 5 years ago by Dominik Schöler.

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

Posted over 5 years ago by Henning Koch.

We upgraded a Rails 2 application to Rails 3.2 and Ruby 2.1, changed the mysql adapter from mysql to mysql2...

Posted almost 6 years ago by Henning Koch.

If you're using the :header_html option in PDFKit (or the corresponding --header-html option in wkhtmltopdf), and the...

Posted almost 6 years ago by Arne Hartherz.

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

Posted almost 6 years ago by Henning Koch. github.com

PDFKit converts a web page to a PDF document. It uses a Webkit engine under the hood...

Posted about 6 years ago by Arne Hartherz. mupdf.com

MuPDF is a PDF reader that renders very quickly, yet still correctly. It supports PDF 1.7 and all the fancy...

Posted about 6 years ago by Dominik Schöler.

So you want your Ruby script to install missing gems instead of dying? Take this method: def installing_missing_gems...

Posted about 6 years ago by Dominik Schöler.

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...

Posted about 6 years ago by Arne Hartherz. linux.die.net

Sometimes you may want to print files from the command line, especially when you have lots of them.

Posted over 6 years ago by Arne Hartherz. sitepoint.com

A look at Prawn, PDFKit, and Wicked PDF

Posted over 6 years ago by Dominik Schöler.

To print a colored full-width bar on the bash, use this bash script expression: echo -e '\033[37;44m...

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