Tag Archives: tools

A Quick Introduction to sed(1)

Posted on July 29, 2017 by Matthias

The sed(1) stream editor is one of the most powerful tools from the classic Unix tool box. It is a close cousin to the ed(1) command line editor and a descendant of the ex(1) editor, the command line mode of … Continue reading →

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Frontend Engineering

Posted on November 29, 2015 by Matthias

Despite all its shortcomings as a programming language, JavaScript isn’t a dirty word anymore. A decade ago, most self-respecting developers would refuse to even touch it, so it was left to web designers and junior developers who spiced up a few HTML pages … Continue reading →

Posted in misc | Tagged , , | 1 Comment

Undoing Things With Git

Posted on February 24, 2013 by Matthias

Sometimes bad things happen in a software project and you have to revert a change that has already been committed. There are several ways to do this with Git, including Git’s slightly scary ability of changing history. I’ll show you … Continue reading →

Posted in tools | Tagged , , , | 2 Comments

Matplotlib: Plotting Bar Diagrams

Posted on December 30, 2012 by Matthias

A while ago we plotted time series data with Matplotlib. This worked nicely, but with the data at hand, a bar diagram would have looked much better. In this article I’ll give you a template for using bar diagrams with … Continue reading →

Posted in python | Tagged , | 2 Comments

Mutt: “too many errors”

Posted on September 9, 2012 by Matthias

I’m probably one of the last people on earth who still use a text-mode mail client. Mutt has been my tool of choice for 15 years and apart from certain limitations (hey, it’s text mode!), I’ve never had any problems. … Continue reading →

Posted in tools | Tagged , | 1 Comment

Visualizing Package Dependencies

Posted on August 26, 2012 by Matthias

Managing module or package dependencies is an important design activity that helps to keep a software project maintainable. Visualizing these dependencies is a good way of getting a first impression on a project and for exposing design problems. In this … Continue reading →

Posted in java | Tagged , , , | 5 Comments

Plotting Time Series Data with Matplotlib

Posted on March 11, 2012 by Matthias

It’s been a while since my last article on Matplotlib. Today we’re going to plot time series data for visualizing web page impressions, stock prices and the like over time.

Posted in python | Tagged , | 16 Comments

Changing the Number of Workspaces in Unity

Posted on February 17, 2012 by Matthias

In Ubuntu’s Unity, you get four workspaces per screen, arranged in two rows with two columns each. Fortunately, there’s a way to get more desktop space, but in Ubuntu 11.10 it takes a bit of searching.

Posted in linux | Tagged , , | 3 Comments