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Posted about 3 years ago by Dominik Schöler.

Dump this method into your Ruby console to quickly print data in columns. This is helpful for e.g. comparing attributes...

Posted about 3 years ago by Emanuel De.

Example: Require awesome_print in the console while it is not in Gemfile or .gemspec. require 'awesome_print' => LoadError: cannot...

Posted over 3 years ago by Judith Roth.

ImageMagick has a command line tool called identify which can read image metadata: >identify -verbose DSC00136.JPG Image: DSC00136.JPG Format: JPEG...

Posted over 3 years ago by Henning Koch.

So you're getting this failure when running bundle install on an older project: Your Gemfile.lock is corrupt. The following...

Posted almost 9 years ago by Henning Koch.

While it might seem trivial to implement an invoice that sums up items and shows net, gross and vat totals...

Posted over 5 years ago by Henning Koch. dncmagazine.blob.core.windows.net

This cheat sheet … aims at providing a quick reference to the most commonly used features in AngularJS.

Posted about 4 years ago by Arne Hartherz.

When testing Ruby code that prints something to the terminal, you can test that output. Since RSpec 3.0 there is...

Posted about 4 years ago by Dominik Schöler. vectormagic.com

Automatically convert bitmap images like JPEGs, GIFs and PNGs to the crisp, clean, scalable vector art of EPS, SVG, and...

Posted about 4 years ago by Henning Koch.

Here are some tools that are useful to manipulate PDF documents under Linux/Ubuntu: Xournal (Ubuntu 14.04+) : Add text, add images...

Posted over 4 years ago by Thomas Eisenbarth.

The following sums up all connections (ESTABLISHED, TIME_WAIT, FIN_WAIT, etc.) and sorts it: netstat -n | awk ' $5 ~ /^[0...

Posted over 4 years ago by Dominik Schöler.

Geordi is now (partially) tested with Cucumber. Yay! geordi cucumber supports a new @solo tag. Scenarios tagged with @solo...

Posted over 4 years ago by Claus-Theodor Riegg.

Ever wondered how you can create a simple table output in bash? You can use the tool column for creating...

Posted over 4 years ago by Claus-Theodor Riegg. cyberciti.biz

Wondering which processes are placed in your swap you can use this bash oneliner: for file in /proc/*/status ; do...

Posted over 4 years ago by Claus-Theodor Riegg. serverfault.com

Logging tcpdump output all the time can create a huge amount of data. This can be both: too much data...

Posted over 4 years ago by Henning Koch.

When you make a simple TCP connection to a remote server (like telnet), your client won't normally notice when...

Posted over 5 years ago by Dominik Schöler. blog.idrsolutions.com

If you have issues with PDFs, fix them like this: pdftk .pdf output .pdf Background I had an issue where...

Posted almost 5 years ago by Henning Koch.

If you'd like to preview the crontab that whenever will deploy, run the following: bundle exec whenever

Posted almost 5 years ago by Emanuel De.

Running projects parallel makes some trouble with PDF generation. Use geordi rspec spec to force sequential tests for the whole...

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